Sunday Worship Services 8:30 & 11am
McKinney, Texas

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McKinney, TX · Sunday Services 8:30 & 11:00 am · (972) 542-4629

Patrick E. McCoy

Senior Pastor

Patrick has been senior pastor of Trinity since September 1993. He grew up in Muskogee, Oklahoma, attended Oklahoma State University and has a Bachelor of Science degree in wildlife ecology research.

Upon graduation from seminary, he worked as a reporter and photographer for the Stillwater News-Press. He attended Princeton Theological Seminary in Princeton, New Jersey, and has been serving Presbyterian Churches in North Texas since his ordination to ministry of word and sacrament in 1982. He was awarded a Doctorate of Divinity from Austin College in 2015. He served on the Board of Trustees of THR Presbyterian Plano Hospital for nine years and is currently Moderator of the Council for Grace Presbytery.

Patrick is married to his college sweetheart, Rebecca Bonham McCoy. She is CEO/President of a credit union and the author of a study guide series for the Certified Credit Union Executive Program through Credit Union National Association.

Patrick and Rebecca have two sons, Micah and David. Micah is a graduate of Austin College and currently lives in New Mexico. He works for a non-profit agency as their communications director and is an award-winning playwright. He spent a year with the Presbyterian Church in East Africa serving as information specialist with Church World Service. His wife, Alice, is an attorney with a non profit that seeks to uphold disability rights. David, who is a graduate of the University of Texas and currently lives in Portland, OR is the senior financial analyst for University Hospital in Shreveport, LA.. His wife, Dr. Molly, is in her second year of pediatric residency at OHSU in Portland.

The McCoy family enjoys travel, camping, boating, and visiting grandson, Bo, in Portland, and granddaughter, Betty, in Albuquerque. Patrick believes any day fishing is a day well spent. He and Micah have also restored a 1951 Chevy that has been part of the McCoy family since 1983. It now belongs to Micah, and it lives in NM.


Mally Baum

Associate Pastor


Mally was born and raised in Milwaukee, Wisconsin and came to Texas to attend Southern Methodist University. She has been involved in ministry since that time, working first as a youth director and then in campus ministry.

In 2001 her husband and children agreed that it was “now or never,” and they moved to Austin so she could attend Austin Presbyterian Theological Seminary. She received her Master of Divinity degree in 2004, and she came to TPC as their first-ever Associate Pastor in 2005.

Her responsibilities here include mission, evangelism, teaching Disciple Bible studies, pastoral care, back-up preaching, and anything else that’s needed. She recently completed three years of study with HeartPaths Spirituality Center, receiving a Certificate of Completion of their Spiritual Direction Training Program. Mally has been married to attorney Chuck Baum since 1985.

Mally and Chuck have two sons. Alec lives and works in Washington DC and Christian is the Field Director for a Dallas-area congressional candidate. Their household also includes Mally’s father, World War II Veteran Chet Rohn, Tucker (a rescued Labrador) and Bailey (a cantankerous feline).

Phyllis Tippit

Parish Assistant


Phyllis received undergraduate degrees in Biology from University of Texas, Austin, and in English from University of Texas of Permian Basin in Odessa.  After working at Southwestern Medical School in Dallas for several years, she returned to the UT system to study geology, receiving her PhD.  She worked as an oil and gas explorationist for 14 years before leaving to attend Southwest Baptist Theological Seminary where she received an MA in Theology. She has taught adult Bible studies for most of the last 40 years in Baptist, Lutheran, and Episcopal churches and served various churches as Youth Director, Minister to Single Adults, and Minister of Education. Phyllis was ordained as a Baptist pastor in 2008, the first woman to be ordained in her church.

Phyllis taught at Houston Baptist University, and was director of their student ministry training program. After her husband’s death, she moved to Waco to take care of her mother and enrolled as a PhD student in Old Testament Studies at Baylor University where she completed all degree requirements except the dissertation.

She began teaching at Baylor in 2001, and continued until her retirement in 2011. Phyllis served as the Sabbatical Assistant at TPC during the summer of 2014. She found TPC to be a place where she could be part of a genuine, caring group of people serving God, and joined the church in the fall of 2014.  She currently serves as Pastoral Assistant, focusing on the areas of discipleship and planning.

Phyllis Tippit was married for 33 years, until her husband’s death in 1998. They had two children, Leah, who lives with her family in Knoxville, TN, and James, whose family is here in McKinney.Phyllis has six grandchildren ranging in age from 13 to 35.

Ralph Graham

Parish Associate

Ralph McCulloch Graham, a native of Pittsburgh, Pennsylvania, observed the 50th anniversary of his ordination as a minister of the Presbyterian Church USA on June 13, 2010. He has been pastor of churches in Pennsylvania and Scotland, as well as serving as interim pastor or stated supply for fourteen churches in Texas and Arkansas. Rev. Graham has served congregations ranging in size from less than 50 (Mammoth Springs, Arkansas, and Leonard Texas) to 2,500 (Drumchapel Old Parish Church, Glasgow, Scotland).

Ralph and his wife, Jeannie (an ordained elder and retired nurse), have been married for 56 years. They have three married daughters: Heather Graham, Holly Baker and Leslie Vestal (Holly and Leslie are both TPC members); four granddaughters, one grandson, and one great granddaughter. Ralph and Jeannie have lived in McKinney since January, 2001.

Rev. Graham holds a Ph.D. from the University of Glasgow, Scotland; as well as a Master of Divinity from Pittsburgh Theological Seminary (Presbyterian), and an MBA from Trinity University. His undergraduate degree is from Muskingum College (Presbyterian), Ohio.

Dr. Graham was associated with Trinity University in San Antonio both as a member of the Religion Faculty and as an administrator. He subsequently served as Vice President of Lyon College, a Presbyterian school in Arkansas. He has taught at Texas Lutheran College and Schreiner College. He has been a Visiting Lecturer at Austin Presbyterian Theological Seminary.

His other ministries includes Program Director of Mo-Ranch, the conference center of the Synod of the Sun, and Coordinator of Mission Support for Presbyterian mission work in Northern Mexico. He has served at every level of the Presbyterian Church (USA) and recently served as moderator of the Examinations Committee of Grace Presbytery.

Ralph has been an active advocate for peace and justice in the Middle East for over forty years. He visited Israel-Palestine for the first time in 1964 when he and his wife drove from Glasgow, Scotland to the Red Sea in their VW beetle. His subsequent visits include four in the past decade. Dr. Graham has led international Christian pilgrimages for more than 30 years and has visited more than 30 countries.

Don Andrews

Pastor Emeritus

Pastor Emeritus is an honorary title bestowed by vote of the congregation to a beloved former pastor. Don and Freda Andrews came to TPC in 1975 and served the congregation for ten and a half years before retiring.

During his tenure, the church was active in community ministry. Don helped prepare the congregation for the decision to move from the downtown area of McKinney to the growing west side. He has been active in the men’s ministry and has provided Pastor McCoy with many words of encouragement in the past seventeen years.

Don is a World War II veteran who served in the U.S. Navy. Below is a brief outline of his academic and pastoral ministry.

1942: Cambridge Business College — Cambridge, Ohio
1950:  Muskingum University — BA, New Concord, Ohio
1953:  Pittsburgh Theological Seminary — MD, Pittsburgh, Pennsylvania
1953:  First Presbyterian Church — Linesville, Pennsylvania
1957:  Church of the Atonement — Pontiac, Michigan
1964:  Calvary Presbyterian Church — Fort Wayne, Indiana
1968:  Northminster Presbyterian Church — North Canton, Ohio
1975:  Trinity Presbyterian Church — McKinney, Texas
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