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Meet Our Instructors!

Sarah Petersen
Camp Director

As Camp Director, Sarah has the opportunity to combine her passion for the arts with her well-developed administration skills. Sarah has served as Saint Barnabas’s Coordinator for Children’s Ministries since July 2015 and has loved the opportunity to form lasting relationships with families while contributing to faith formation and music education in children’s lives. Although an Arizona native, Sarah has traveled the globe singing and teaching. She attended Baylor University in Texas and earned a Bachelor of Arts in Spanish Language and Literature. Immediately following university, she moved to New York City to serve in low-income schools with Teach For America. While teaching English in Washington Heights, Sarah began singing at Saint Bartholomew’s on Park Avenue and joined the Episcopal Church, where she has been at home and singing in church choirs ever since. After two years teaching in New York and earning a Master’s degree in education, Sarah moved to Washington, DC and worked as a managing editor of scholarly journals. Since her time in DC, Sarah has lived in Guyana, Suriname, and Oxford, England, and worked as a teacher and school administrator. She is overjoyed to be organizing the camp and working with such a vibrant and experienced faculty.

Jolynne Aszterbaum
Wee Hearts Program Director

With her passion and more than twenty years of expertise in early childhood development and the arts, Jolynne Aszterbaum is excited to travel from California to serve as the Wee Hearts Camp Program Director. Jolynne graduated from Pacific Christian College in 1995 with her Bachelor of Arts in Child Development. She has taught preschool and parenting classes for teen mothers with First 5 Riverside in California and has worked with developmentally delayed infants and toddlers as a Developmental Specialist. Jolynne also served as the Wee Ones Camp Director for the Junior Fine Arts Camp at Chaparral Christian Church in Scottsdale for two years.

Currently, Jolynne currently is the Arts and Enrichment Coordinator at St. John’s Lutheran School in Hemet, CA, creating a school-wide arts program for K-8 and teaches art, music, and photography. She recently celebrated twenty years of marriage to her husband Joey, and they have four children ages 10-18 who they homeschooled for the majority of their school years. She is a member of The Episcopal Church of the Good Shepherd in Hemet, CA.  Jolynne has always valued music, creativity and imaginative play as the most important elements in early development and has created curricula with those as a core. She is very excited to play, sing, and create with your kids.

Moira Winter
Set design, Juggling, Face Painting

A graduate of ASU with a Bachelor of Fine Arts (BFA) in art and a minor in art history, Moira actually began her college years pursuing a major in chemical research. However, she realized that she is an artist and ever will be so her studies adjusted accordingly. Moira played racquetball professionally as a young adult and was a teaching pro at athletic clubs for 15 years. Currently, Moira and her partner are ranked second in Arizona Doubles Racquetball.

Moira enjoys working with young people. Through the years, she has taught set design, sketching, sign making, macrame, large space design, muraling, paper mache, juggling, face painting and crochet. Moira’s more unique specialty is handling large spaces, including things like decorating a cafeteria or auditorium, or a football field, or stage scenery. Hallways and entire rooms are her canvas. Moira works to apply her skills to develop and encourage the talents and diverse capabilities of young people.

Sarah Smith
Choir Ensemble

Sarah Smith moved to the valley in 2008 after she received a Bachelor of Music from the University of Nebraska-Lincoln in voice performance. She continued her studies receiving her Master of Music from ASU in 2010. Sarah made her professional debut as a soloist with the Phoenix Symphony in 2010, she also appeared as a soloist and chorister in the 2011 and 2015 Arizona Bach Festivals as well as with Arizona Opera Chorus in 2014. Over the years, Sarah has had the privilege of working as a music educator, as adjunct professor at Paradise Valley Community  College, Mesa Community College and Central Arizona College, as well as K-5 Art and Music teacher at Great Hearts Academy – Teleos, and most recently as Children’s Choir Director at Saint Barnabas Episcopal Church. When not in the classroom Sarah focuses her time as a concert soloist in several genres, performing frequently as a featured performer with Colorado New Music Ensemble, Classical Revolution Phx, as well as a chorister and soloist for The Saint Barnabas Choir, North Valley Chorale, Canto Vivo Chorale, Inspirare Nova and Solis Camerata.


Andrew Sievers
Drama Ensemble

An Arizona native, Andrew Sievers has actively engaged the Arizona Arts community for almost two decades as an actor, singer (bass-baritone), instrumentalist (violin, viola, and electric bass), stage director, conductor, and producer. After a year at Arizona State University as a vocal performance major in his collegiate studies, he decided to make the move to Northern Arizona University in choral music education and continue pursuing his eclectic interests. During his studies, he was the 2008 recipient of the John C. and Elizabeth P. White Choral/Vocal Endowed Scholarship. Currently, Andrew feels blessed to serve at Saint Barnabas Episcopal Church and is committed to the development of young minds and hearts through the Arts.

Andrew made his debut directing You’re A Good Man, Charlie Brown at the age of 17. He went on to direct a production of The Fantasticks a year later. While living in Flagstaff, he sat on FLOC’s Board of Directors for a year, and went on to assistant direct The Merry Widow, and direct the The Pirates of Penzance for the company. During this time, he also formed a company of collegiate performers known as “The Bohemians of Northern Arizona,” through which he produced and directed several well received cabaret-style productions for the Sedona area. Since returning to Phoenix, he has directed productions of Joesph and the Amazing Technicolor Dreamcoat in 2013, The Pirates of Penzance in 2014, and most recently a revue of Rodgers and Hammerstein productions.

Jean Spanko
Drama, Creative Drama

Jean Spanko came to Arizona in 1964 to begin a teaching career that spanned 38 years and included teaching music, drama, English, Humanities, and technology. Jean is retired now but enjoys helping with the music program at her church and hanging out with her eleven grandchildren.

Jean holds a Master’s degree in education from Arizona State University and has served as an educational consultant in schools around the country. She is author of Taming the Anthill, which is a handbook for beginning music teachers. In her spare time, Jean enjoys traveling, reading, crocheting, jigsaw puzzles, and spending time with friends and family. She is excited about the coming camp experience and is looking forward to making new friends.

Diane Merle
Chimes, Boomwhackers, Wee Hearts Music

Diane started out in college as a music major focusing on vocal performance and elementary education. However, life got in the way and four kids and four grandkids later, she has now found a way back to teaching music in various ways. A founding member at Chaparral Christian church, Diane has taught children’s choir, played hand bells with an adult bell choir, directed teen hand bells, co-directed teen choir and adult choirs, and co-directed and even starred in teen and adult drama/musicals. She is serving on the praise team at her current church as well as the fulfilling the roles of secretary and treasurer. She has taught private beginning piano and voice for more than 15 years now. Diane is the Kiddie Keys teacher at the Scottsdale location of Musicology. She loves working with children to instill the love of music and is excited when her students grasp a concept and she can see the light bulb go off in their heads. For fun, she loves decorating and do-it-yourself projects with her husband around her house and for others and working out in her garden and yard.

Jackie Huber 
Crayon Creations, Band in a Box

Jackie Huber has been involved in music since she was a little girl. As a child she played the piano, violin, oboe, percussion and sang songs. She loved to choreograph dance routines with her sister in the living room, put on plays for the neighbors, and make art out of any materials she could find. This passion for the arts led her to pursue her degrees in vocal performance with a Bachelor of Music from DePaul University and an Masters of Music from Northwestern University.

Now one of Jackie’s favorite things to do is to share this love of the arts with children of all ages. She and her husband Tom have 3 children ages 9, 7 and 5. The family enjoys traveling, cooking, playing games, creating art and dance parties in the living room. Jackie is currently principal organist at Mountain View Presbyterian, Music Director at Congregation Beth Israel, and she freelances around the valley as a soloist, accompanist, and choral clinician. Before having children, she sang with the Arizona Opera Chorus for 12 years, the Phoenix Chorale for 6 years, and has soloed around the Valley including with the Phoenix Symphony. She cannot wait to share her enthusiasm through her creative and energetic teaching style with the children of Summer Music and Arts Camp at Saint Barnabas.

Claire Shortridge Sievers
Origami, Ukulele, Conducting

An Arizona native, Claire received a Bachelor’s of Music from the University of Arizona and a Master’s of Instrumental Music from Arizona State University, as well as a school counseling certificate. She spent most of her career years as a 7-9th grade orchestra and guitar teacher and, though she retired after 34 years, still enjoys getting back into the classroom as a long-term orchestra substitute now and then. She is currently spending the year as the orchestra director at Skyline High.

In 2006, Claire was honored to receive the Excellence in Music Education Award from the AZ Music Educators Association. An active violinist, she is currently 1st violinist with the Kuchen String Quartet and Concertmaster of the Tempe Symphony. Claire loves crafting in general, but particularly quilting and always has a few quilting projects going, including the quilt she made for AZ Centennial 100 Years-100 Quilts project. She also enjoys making origami, Norwegian Hardanger needlework, embroidery, paper crafts, and especially loves making Christmas ornaments using a variety of media. Claire has taught at summer arts camps for many years and loves sharing and teaching every age group of kids in this fun and creative atmosphere.

Nancy Sowers
Ukulele, Origami

Nancy Shortridge Sowers received Bachelor of Music degrees in both Music Education and Flute Performance and a Master of Music in Music Education from the University of Arizona. A native Phoenician, she has performed throughout the Phoenix area as a freelance musician in musical theater, chamber music in both classical and sacred settings, as a soloist, and in many local symphony orchestras. Nancy was one of the founders of the Arizona Flute Society and also founded and directed the Paradise Valley Community College Flute Choir for fifteen years.  She has conducted flute choirs and performed in various ensembles at several National Flute Association Conventions. Nancy also spent two summers at the National Music Camp at Interlochen in Michigan and was a member of the Phoenix Bach Choir, singing alto for nine years.  Nancy has taught general music and chorus in the Paradise Valley school district since 1998.  She has received the Level One certification in both Orff and Kodaly Music Pedagogy from Arizona State University.  Nancy is a member of the Music Educators National Conference, Arizona Music Educators Association, American Orff-Schulwerk Association, Arizona Orff Association, National Kodaly Teachers Association, and the Arizona Kodaly Society. Nancy is currently teaching at Wildfire Elementary School and plays principal flute with the Tempe Symphony Orchestra.

Sandra Sutton Andrews
Mask Making, Messy Arts

Sandra first studied Early Childhood Education and then obtain the necessary credentials to teach at higher and higher levels. Art for young children was just too much fun, so as her children grew older, she taught an arts-based curriculum that extended through the upper grades. Sandra also completed a PhD with a focus was on educational technology, yet she never strayed too far away from art. Early on during the PhD years, she began volunteering with families who were or had been homeless, and then with other marginalized populations, bringing art and technology into their lives and finally taking a job at ASU where her work was encouraged and supported. After retiring, she was inspired to convert her home into a gallery and community space—the Millet House. Currently, the Millet House community flourishes with workshops that simultaneously offer fun and training. Among the workshops in 2015 were a series of messy art classes for children and adults.

Sharon Hostetler
Science Art, Duct Tape Art

Sharon has always loved working with children and is happiest when she can combine her love of children with her love of music. Her life has been full of opportunities to do just that. Over the years, Sharon has directed children’s choirs, musicals, and handbell choirs, in addition to teaching private piano lessons. Sharon has always known that she wanted to be a teacher. She earned my B.S. in Special Education from Boston University and currently teaches first grade at a charter school in Phoenix. In her free time, Sharon loves singing, playing guitar and piano, and spending time with her sons. She so excited for camp this summer and anticipates all sorts of fun adventures!

Mary Blakeman
Cake Decorating

Mary Blakeman was born in Alaska and grew up as an “Air Force brat”. She married the love of her life, an Army officer, 33 years ago. Later, she graduated from Northern Arizona University with a degree in dental hygiene. Mary learned cake decorating at a church class more than 30 years ago and has made cakes and taught classes ever since. She recognizes cake decorating as a wonderful hobby that she loves to share with children.

Kelly Parker
Personalized Tote Bags Project

Kelly enjoys helping young people explore and discover their potential. She led Sunday School and Junior High Youth Ministry classes for several years and attended bible college in southern California. Kelly discovered her love of all things creative while overseeing special events and promotions for a comic book publisher and toy manufacturer for a number of years. That business brought her to Arizona in the late 90’s. Kelly spent twelve years in the banking profession, overseeing a finance team, before marrying and having two daughters whom she now homeschools. She is a natural DIY’er and prefers to figure out how to do something herself whenever possible. She is thrilled to be a part of the Saint Barnabas Summer Music and Arts Camp.

Marion Hostetler
Organ Session, Accompanist

 Marion Hostetler has a passion for young people and the arts. For 12 years, she ran a week-long Jr. Fine Arts Camp in Prescott every summer. She was on staff with the Phoenix Boys Choir and has extensive experience with both children’s choirs and youth choirs, in addition to accompanying many Valley choral groups. Marion is currently organist at Church of the Beatitudes in Phoenix. She received her Bachelor’s degree from Oberlin College and Conservatory in Ohio and did graduate work at Union Theological Seminary School of Sacred Music in New York City. For 38 years, she ministered through music at Chaparral Christian Church in Scottsdale.

Ready to register for camp? Click here.
Curious to learn more about our classes at Summer Music + Arts Camp 2016? Click here.

For more information, please contact Sarah Petersen, Camp Director and Coordinator of Children’s Ministries: or telephone (480)355-9730.