Donald Underhill

Church Maintenance Manager and Custodian

Donald Underhill is the senior statesman of our Chatham UMC staff. He has been the talented, resourceful, and faithful Maintenance Manager and Custodian at CUMC since June, 1994. He has mentored many people over the years, and gives people on the job training that become life skills in this field and other professions. Donald is beloved by many, but most especially by his wife of many years, Jacqueline.

Eileen Carroll Ruggiero

Office Assistant
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Eileen is a lifelong resident of Chatham. She is a graduate of the University of Massachusetts at Amherst where she received a BA in English. Previously, Eileen worked as Development Director for Community Access Unlimited in Elizabeth where she was responsible for grant writing, public relations, and fundraising. She enriches her life through volunteerism. Eileen is the Founding Chair for the Greater Morris Area Walk Now for Autism Speaks event. Eileen’s greatest pride is her family which is comprised of her husband, Ken, and children Elise and David.

I am in the office Wednesday-Friday 10:00am-2:00pm. Please call 973-635-7740, Ext 10, or send an email at

Zrinka Cvetkovic

Church Secretary
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Zrinka has served as the Church Secretary since March 2016. She was born and raised in Croatia, and has a B.S. in Economics from the University of Zagreb. She loves working with people and hopes to share kindness and compassion in her line of work, since those are her core values. Zrinka has proudly been a part of the Chatham NJ, community since 2005, with her husband, Branimir, and her two amazing boys, Filip and Dan. She is a lover of books, cinema and Zumba and enjoys going on long walks with her friends and the Cvetkovic family dog, Spark.

I am in the office Monday-Thursday 9:00am-2:00pm. Please call 973-635-7740 or send an email at

Ana Wahidy

Finance/Office Manager
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I am in the office Tuesday-Friday from 9:00am-3:00pm and Friday’s 9:00am-2:00pm.  Please call me at 973-635-7740, or email me at if you have any questions. 

Jiwon Yoon

Simpson Seminarian
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Jiwon Yoon graduated from Seoul Theological University in South Korea and gained a B.A in Mission English. Throughout the several years of his ministry with a missionary organization, Jiwon has found out that there is an urgent need for Christians’ proper communication with the society. With this regard, Jiwon tried to experience various cultures and languages around the world, living and traveling in Dublin, London, Chiang Mai, Baggio, and New Delhi. After completing his military service in the Republic of Korea Air Force as an intelligence officer for three years, Jiwon has come to the U.S to begin his Master of Divinity course at Drew Theological Seminary.
Now, Jiwon continues to be trained to become a spiritual bridge-builder by serving both New York Methodist Church & Institute(Korean congregation) and Chatham United Methodist Church, as a student pastor and a seminarian intern respectively.

Chang yong Shin

Simpson Seminarian
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Chang yong Shin was born in Korea in 1992. He graduated from Gang-neung High School in 2011 and was admitted to Methodist Theological University, Korea. From 2011-2013, he had served as a youth pastor in Kun-Bit Church, Korea. He had served in Korean Military Army from 2013-2015. Following his military service, Chang yong  joined the Chung First Methodist Church as a member of their staff from 2015 – 2016.  He graduated from Methodist Theological University in 2017 with a Bachelor of Theology and was admitted to Drew Theological School, 2017 (M.Div).

Karen Berry

Director of Children’s and Youth Ministries
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Karen is a lifelong Methodist, originally from the Heartland.  While growing up in Missouri (in towns from Marshfield, home of the unique Horse Motel, to Kansas City, home of the Chiefs and the world’s best barbeque!) she participated in the UMYF, volunteered for VBS, accompanied the children’s choir and sang in the chancel choir – all activities which have continued to hold her interest over the years.

While in high school, Karen participated in a one-year exchange program in Northern England where she first experienced what happens to a church without a strong youth and children’s ministry.  She also developed an interest in all things international and went on to study Global Business Communications at Wartburg College in Waverly, Iowa in an intense program that included coursework at the Goethe Institut in Munich, the Estudio Internacional Sampere in Madrid and the Universität Bonn in Germany.

After settling in NJ, Karen co-lead the youth program at another United Methodist church before discovering the vibrant community at CUMC, reminiscent of the churches of her childhood.  The rest is history!

Karen coordinates the Sunday School program, Junior Youth Fellowship, Senior Youth Fellowship and works with the Kids’ Praise Team, the Youth choirs, the RISE mission team, and the Vacation Bible Camp program, coordinates public outreach efforts pertaining to CUMC’s youth and children, and represents CUMC on Chatham’s Youth Interfaith Council.  All this is done with the support of the committee on Christian Education and Spiritual Formation and many faithful lay volunteers in the church.

Peter Hill

Music Director
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Peter Hill is graduate of Bucknell University with a Bachelor of Arts in music. While an undergraduate, he was music theory teaching assistant to composer William Duckworth and received the Barbara Watson Grever Prize in Music. Peter received a Master of Music degree in piano performance and a Professional Studies Diploma from the Cleveland Institute of Music. He also holds a Master of Education in music education from Teachers College, Columbia University. While attending the University of California, Davis for a degree in musicology, Peter was the assistant conductor to Jeffrey Thomas and the UC Davis Chorus.

Peter has taught at the Cleveland Music School Settlement in Ohio and the Wardlaw-Hartridge School in Edison, NJ. He has been published in the NAfME’s Teaching Music and has reviewed choral music for the Choral Journal of the ACDA. Peter has served as Director of Music for 24 years in Methodist, Presbyterian and RCA churches. Before relocating to the East coast, Peter served as Director of Choirs for Westminster Presbyterian Church in Sacramento, CA. He directs the Carter Burden Singers, a community chorus of the Carter Burden Network in East Harlem. He teaches music for the three and four-year olds in the Chatham Methodist Preschool. Peter serves as president of the Suburban Music Study Club and teaches private piano lessons here at Chatham UMC. To find out more about Peter Hill go to his website

Peter has a beautiful daughter, Emma Jane, and fantastic wife, Katie. He enjoys sci-fi motion pictures, deconstructing episodes of Doctor Who, a wide variety of quirky literature, too many dad jokes, and looking for new music to make his family sing around the piano.

Rev. Sharon Yarger

Associate Pastor
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Pastor Sharon is a Commissioned Deacon in the Greater New Jersey Annual Conference.  She is a New Jersey native, a lifelong United Methodist, and the granddaughter of a United Methodist pastor.  She has a BA in Music from Wellesley College, a Master of Music in Historical Musicology from Indiana University School of Music in Bloomington, Indiana, and a M.Div. from Drew University Theological School.

If Sharon seems familiar, it’s because she served at the Chatham UMC from 1997-1999, first as a Student Pastor while a seminarian, then as Church School Director.  She’s thrilled to be back to again serve among the people of the Chatham United Methodist Church!  Pastor Sharon has a passion for helping others to grow in faith through practicing Christian spiritual disciplines; engaging in Bible study and holy conversation; caring for others; and serving those in need in the local and global communities.

In addition to her time at CUMC, Pastor Sharon has served in the areas of Christian Education/Formation (for all ages) and Congregational Care ministries with the Niantic Community Church (a federated UCC/UMC congregation) in Connecticut, and with the Morristown, Union Village, and Succasunna United Methodist churches in New Jersey.  She has also served as a Chaplain at a psychiatric hospital and community hospitals in New Jersey and Pennsylvania.

Sharon met her husband, Ron, at a weekly young-adult Bible Study affiliated with the Madison UMC.  Ron is employed as Vice President for Business Development for Solvias, Inc., a Swiss company that provides research services to the pharmaceutical industry.  Ron has also enjoyed serving churches through teaching Sunday School, singing in the choir, and playing the flute.  Sharon and Ron have a son, Nathanael (age 16), and a daughter, Miriam (age 12).  The Yargers also have a cocker spaniel, a cat, and three fish.  They live in Morris Plains, and in their spare time enjoy being at the beach, traveling, and visiting with family near and far.

Rev. Jeff Markay

Senior Pastor
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The Rev. Jeff Markay has a BA and M.Div. from Drew University.  He has studied and practiced Christian disciplines in diverse settings including congregational ministry, monastic community, and spiritual direction for the past 24 years.  He has enjoyed being in pastoral ministry with the United Methodist Churches in Morristown, Springfield, Caldwell, and Chatham, New Jersey since 1989.

During his ministry he has been called to help people of different cultures to delight in what God is doing in different countries and ministry settings.  He has led groups of youth, young adults and seminarians to the Community of Taize, France.  He has led delegations of United Methodists from NJ to the Crimea to help a United Methodist Church in Kerch, Ukraine.  He has done refugee relief work in Macedonia during the Kosovar Refugee Crisis by doing needs assessment in the refugee camps and training seminars for mental health for refugee aid workers.  He was the Consultant for the General Board of Global Ministries supporting United Methodist Churches and ministries in Hungary.  He has served as the United Methodist Liaison at Drew University Theological School where he helped seminarians in the discernment and ordination process.  He has been actively involved in building bridges in ecumenical and interfaith circles, and delights in any opportunity to find common ground with people of other faith traditions.

He is happily married to the Rev. Julie Yarborough, Associate Pastor at Christ Church in Summit.  They are the grateful parents of Matthew (age 14) and Elizabeth (age 10).  His greatest joy is to sit around the family table, catch up, laugh, tell stories and do the dishes together.  If there is any spare time, he enjoys playing tennis, chucking a Frisbee, going to whatever sporting event is in season, or eating good Middle Eastern food.

He began a new appointment in July, 2013 as the Senior Pastor in the Chatham UMC.  “I am so grateful for the opportunity to serve God and the community here in Chatham.  Chatham UMC has a rich heritage of faithfulness, building inclusive community, and sharing compassion with all people.  Our congregation has witnessed to the love of God for all people, and I am glad to be a part of what God is doing in our midst.  I look forward to being in ministry together as we seek to grow in our love of God, our care for each other and people in need, and our collective desire to serve the common good as followers of Jesus.”