Tim Galligan – Senior Pastor
After growing up in California, Hong Kong, New Jersey, and Kansas, Tim graduated with a bachelor’s degree in Electrical Engineering and a bachelor’s degree in Cognitive Science from the University of California, San Diego. He then worked for a bit in the Silicon Valley before crossing the continent once again to complete his Master of Divinity at Princeton Theological Seminary.
Tim began his pastoral ministry in Houston, at Clear Lake Presbyterian Church as Associate Pastor of Outreach and Evangelism. During his three years there he preached regularly and helped the church transition between senior pastors. In 2008 he became an associate pastor at First Presbyterian Church, San Antonio where he taught extensively as he worked with their Discipleship Ministries. While there, he met and married his wife Chalie (a native Texan and fellow engineer). In 2010 they made the move back to Houston, where Tim completed a Master of Business Administration at the University of Houston.
In early 2012, Tim accepted God’s call to pastor Trinity Presbyterian Church of Southlake where his contagiously energetic style of ministry continues today. Tim, Chalie, their daughter Emily (6), their son Jack (4), their daughter Kate (2), their daughter Lily (0), and trusty dog Duke enjoy camping, movies, sports, eating guacamole and spending time with friends and family.
Ruth Johnson – Business Manager
Ruth grew up in Buffalo, New York with parents who emigrated from Germany and the Ukraine. She graduated from Clarkson University with a BS in Mechanical Engineering.
Ruth met her husband, Randy, at college and that have three children (Katie, Kristen and Carlton) – all grown and on their own. They lived in Philadelphia, PA and Seattle, WA before arriving in the DFW area in 1998. Ruth enjoys travel, beaches, game night, reading, painting and crafty things.
Ruth is also a charter member of this church, and joined the staff at Trinity Presbyterian Church of Southlake in April of 2005, as part time Financial Secretary managing the church’s bookkeeping. As more responsibilities were added, Ruth became Business Manager and is now doing financial stuff and managing rentals and sports camps.
Whitney Avritt – Interim Director of Christian Education
Whitney grew up in Greenwood, Mississippi and attended Mississippi State University where she earned her Bachelor of Science in Business and MBA degrees and worked as a graduate assistant in finance and economics. She also studied art at MS State. She and her husband, Alston, moved here three years ago after living in Memphis, TN for seven years.
She worked as a teacher at both the First Presbyterian Preschool in Grapevine and Hope Preschool in Cordova, TN, and is also the owner and artist of Pleasantview Pottery in Greenwood, MS. Whitney’s volunteer experience includes work with Children’s, Youth, and College Ministries at several Presbyterian churches in Mississippi, Tennessee, and Grapevine, TX. She is an ordained Deacon in the Presbyterian Church and has served as a Sunday School Teacher for 6th and 7th grade students.
The Avritt family has been attending Trinity since the beginning of the year. Whitney and Alston recently celebrated their 10th wedding anniversary and they have three children, Brewer (age 6), Adam (age 4) and Taylor (8-months old). They enjoy camping as a family and hope to take Taylor for her first outdoor adventure once the weather cools down.
Rachel Peters – Director of Trinity Private Preschool
Born and raised in Texas, Rachel graduated with a bachelor’s degree in Applied Learning and Development from the University of Texas at Austin with a teaching certification. She met and married Joel while at UT and began her teaching career in Pflugerville ISD. She taught there for two years before moving to the DFW area where she taught for Southlake Carroll ISD for five years.
Rachel, a charter member of this church, joined the staff at Trinity Presbyterian Church of Southlake in January of 2012, as the part time Director of Christian Education overseeing children through adult Sunday school, Growth Groups, and other adult Bible studies. In August of 2013, she also became the Director of Trinity Private Preschool, where she continues to grow and enhance the program.
Rachel, Joel, and their sons Jamison, Austin, and Carson are an active family of five who enjoy spending time with family and friends, going to the park and movies, and keeping up with school activities and extracurriculars.
Christa Harley – Administrative Assistant
Sue Mulvin – Director of Communications
Sue was born and raised in northwestern Pennsylvania and was educated in Information Technology and Accounting. Her professional career spanned 20+ years in the areas of Finance and Information Technology, working in the manufacturing and engineering industries. Sue married Bob Mulvin in 1999 and a few years later they relocated from Pennsylvania to follow Bob’s career at GE Transportation. At this time Sue’s career transitioned to using her skills in various volunteer positions at non-profits and church organizations.
Sue and Bob’s first move took them to Calgary, Alberta Canada where they both got the opportunity to indulge their love of the great outdoors. The proximity to the Canadian Rockies gave them unlimited access to hiking, skiing, and snowshoeing. From there, they moved to Paris, France which taught them valuable lessons in adaptability as they learned to live in and love the French urban culture. When they weren’t exploring the City of Lights, they spent their spare time touring around Europe. Their next move repatriated them to Jacksonville, Florida where they got to indulge their love of seafood and readjusted to the American way of life.
Their most recent move in 2016 brought them to Keller, Texas where they live with their beautiful Calico fur-baby, Sienna Vienna. They are enjoying exploring the great state of Texas and meeting new friends. The relationships they have developed in all their “homes” mean the world to them.
Sue and Bob joined the Trinity Presbyterian Church family in the fall of 2016 and Sue accepted the position of Director of Communications in October 2017 and is very excited to serve her church family in this capacity.
Sue also enjoys singing in the choir, knitting, gardening, and spending as much time as possible outdoors.
Elizabeth Stelzer – Music Director
Betsy Stelzer is a graduate of University of North Texas and the University of Texas at Arlington music programs. She is a director, educator and composer, working primarily in church and public school settings. She has been leading choirs and music programs in churches for over a decade, and feels passionately about leading congregations in worship and training choirs to lead alongside.
In her free time, Betsy enjoys hiking, swimming, reading and writing, and enjoying nature. She is currently in the accompanist at Grand Prairie Fine Arts Academy and sings with the Mid Cities Chamber Singers.