Clergy & Staff

Sue Acton

Coordinator of Outreach Ministries

Sue has been a member of GPMC since 1989.  She has served as an elder, a deacon, and has been a member of four councils.  She’s been a lay reader, a bible teacher, a dinner dean, a middle school adviser, and chaired a PW church fair.  She joined our staff, part-time, in 2011.

When not organizing or at an outreach event, you are likely to find Sue in a classroom in Grosse Pointe as a substitute teacher.  In her free time, Sue loves spending time with family:  especially her husband, Bob, her grown “kids,” and her three grandsons.  Traveling is her favorite hobby, whether to visit family or see a new part of the world.  Reading, sewing, crochet, home projects, and yoga are a few other interests.  Email her to help answer the question “What’s MY outreach?”

James Biery

Minister of Music & Organist

Jim joined the GPMC staff in August 2010. He grew up in Nebraska and earned Bachelor and Master of Music degrees from Northwestern University. He also holds the Fellowship certificate of the American Guild of Organists, winning the prize for receiving the highest score on the examination in 1986.

Before coming to Grosse Pointe, he directed music programs at Catholic cathedrals in Hartford, Connecticut, and St. Paul, Minnesota. He is a published ASCAP composer with many pieces of organ and choral music sung and played in churches across the country. His wife, Marilyn, is also an accomplished organist, church musician, and published composer; in addition, she enjoys hymn text writing. They have one daughter, Laura, who graduated from the University of Chicago in 2012.

Rev. Mark Diehl

Interim Pastor

Mark E. Diehl has served the Presbyterian Church as minister of the Word and Sacrament since his ordination in 1980. His ministry has encompassed the southeastern United States, including Louisiana, Arkansas, Maryland, Tennessee, and most recently North and South Carolina. Mark’s pastoral roles in congregations have been equally diverse, serving in churches of 12 to 3,500 members located in rural and small-town settings as well as inner cities and suburban areas. Since 2012, his focus has been on transitional ministry in congregations between called senior ministers/heads of staff. Mark’s work at Grosse Pointe Memorial Church is his fifth interim.

A native Texan, Mark received his education at Texas Tech University in Lubbock, TX (BA, History), Columbia Theological Seminary in Decatur, GA (MDiv), and Loyola University at Baltimore (MS in Pastoral Counseling). He is certified for pastoral counseling and for Transitional Ministry in the Presbyterian Church USA. Mark has authored God of Deliverance and Transformation: The Ten Commandments for the Twenty-First Century, which recently was published and is available on Amazon.

Mark is married to Mary Brown Diehl, and they have three grown children (Rebekah, Will, and David), and one granddaughter (Meier).

Rev. Sarah Godbehere

Associate Pastor

Sarah joined the GPMC staff as Associate Pastor for Youth and their Families in 2014. She received her Master of Divinity from Yale Divinity School in 2014, and has also earned a Master of Science in Education from the City College of New York and a Bachelor of Arts from Williams College. Before beginning preparation for ministry, Sarah worked as a high school special education teacher and as a professional dancer. In all of her careers, Sarah has thoroughly enjoyed working with teenagers because of their passion, their willingness to ask hard questions, and their boundless energy. 

Sarah’s husband, Caleb, is a music theorist specializing in intellectual history. In her free time, Sarah enjoys hiking, reading, and knitting.

Carol Beltz Marks

Director of Pastoral Care Ministries

Carol is the Director of Pastoral Ministries at GPMC. She was called by Grosse Pointe Memorial Church and has been in pastoral ministry here for 28 years. “This congregation is filled with inspiring and loving people. They share their spiritual gifts with faith and care.” Her family, husband Rich, daughter and son-in-law Mary & Jeff Edwards, son & daughter-in-law, Mike & Caroline Marks and son Peter and nine grandchildren, Emma, Matthew, Ally, Lucy, Charlie, Henry, Will, Rosie and Oliver is a constant source of joy.

If Carol is not at Grosse Pointe Memorial Church, you can most likely find her enjoying family, playing with grandchildren or hiking.

Rev. Susan d’Olive Mozena

Minister of Adult Education

Susan has lived in Grosse Pointe since 1969 and joined GPMC, the church where her husband, John, was confirmed, that same year.  She joined GPMC’s staff in her current role in March 2009.  Later that same year,  Susan was ordained as a Presbyterian minister at Grosse Pointe Memorial Church, after 30 years as a hospital administrator and health care executive.  She holds a bachelors degree from Mount Holyoke College, a masters degree in teaching from Northwestern University, a masters degree in health services administration from The University of Michigan, and a masters degree in divinity from McCormick Theological Seminary, through the cooperative program with Ecumenical Theological Seminary in Detroit. 

Rev. Mozena is a board-certified chaplain, and retired in late 2014 from her position as a hospital chaplain in the Oakwood Healthcare System. Susan loves to read, everything from “church books” to military history.  She also loves to play golf, and being outdoors in general.  She and John have two grown children, John and Beth, both of whom are married, and they are blessed with three grandchildren.  Their greatest joy is spending time together with the whole family.

Jim Schultz, CPA

Director of Finance and Operations

Jim joined GPMC in January 2014 as the Director of Finance and Operations. He enjoys working closely with fellow staff members on Finance and Building projects. Jim graduated from Walsh College with a Bachelors degree in Accounting. His 36 years of accounting experience includes many years as Controller of a software engineering firm. He also held similar roles at two large insurance agencies subsequent to gaining public accounting experience after graduation. He has served as volunteer Treasurer for Christ the King Lutheran Church in GP Woods for 8 years. He is currently a Vestry member of St. John’s Lutheran Church in Rochester, MI.

Jim’s wife, Linda works nearby at GP South High School. They have two children, Bradley, a personal trainer and Cameron, a History major at Grand Valley State University. Jim loves to play hockey in the winter, while bike riding and bass fishing in the area and up north with friends during the warmer months. He also enjoys playing and walking with their Yorkshire terrier, Paisley.

Lisa Turner

Director of Children’s Ministries

Lisa and her husband Scott have been members of Grosse Pointe Memorial Church for 23 years. Witnessing her own three children’s faith grow here at Memorial, Lisa brings passion and enthusiasm to this ministry in the hope that other families may also experience the love of Jesus Christ in their lives. Lisa is currently enrolled in the Christian Education Certification program through the Presbyterian Church USA.  In addition to her ministry with children, Lisa is committed to helping parents fulfill their calling as the primary Christian educator for their children.

Support Staff

  • Dan Aggas – Head Sexton
  • Donna Hartzell– Administrative Assistant for Worship, Music, and Communications
  • Fran McCabee– Administrative Assistant for Membership
  • Susan Griffin – Accounting Manager
  • TBD – Admininistrative Assistant for Christian Education
  • Dan Ryan – Engineer/Sexton
  • Joe Warnez – Sexton