Leadership Staff
Reverend Dr. Daniel Milford – Pastor
Rev. Dr. Dan Milford (he/him) is deeply grateful that the Good News of God’s love and grace is truly for all people. Throughout his ministry, Dan has been passionate about helping the church become a place of genuine welcome—especially for those who have historically felt excluded, unheard, or alienated. He is committed to embracing people of every background, culture, and identity, including those navigating mental health challenges, members of the LGBTQ+ community, and anyone seeking a renewed connection with faith.
Dan has served congregations in Texas, South Carolina, and Oklahoma. Prior to coming to John Knox, he was Pastor of Covenant Presbyterian Church in San Antonio, TX. He previously served as Associate Pastor at Lake Murray Presbyterian Church in Chapin, SC, and as Pastor of First Presbyterian Church in Sand Springs, OK.
He is a graduate of Texas A&M University and Columbia Theological Seminary, where he earned both his Master of Divinity and Doctor of Ministry degrees.
A gifted teacher, Dan especially enjoys leading confirmation classes, newcomer classes, and engaging conversations with those who are curious about Christianity or seeking to grow in their faith. He has a particular interest in helping people explore the rich and productive dialogue between science and faith. He is also energized by ministries that put Christian faith into action through service, justice, and witness.
Over the past decade, Dan has developed a deep passion for mental health ministry. He helped lead the “Beautiful Minds” initiative and worked to create a broader emphasis on mental health across the Presbyterian Church. In recognition of this work, Columbia Theological Seminary presented him with the Distinguished Service Award in 2020. His heart for mental health ministry reflects his conviction that the church must be a place of compassion, understanding, and hope.
Dan has been married to his wife, Nadia Rosales, for 34 years. Together they are the proud parents of three adult children—Austin, Joshua, and Alexis—and delighted grandparents to Marta. As a family, they enjoy traveling, camping, hiking, kayaking, snorkeling, and spending time outdoors together.
Dan is honored to serve at John Knox Presbyterian Church and looks forward to walking alongside this congregation as we continue to welcome all, embrace diversity, and live out Christ’s mission together.
“The Spirit of the Lord is upon me, because he has anointed me to bring good news to the poor. He has sent me to proclaim release to the captives and recovery of sight to the blind, to set free those who are oppressed, to proclaim the year of the Lord’s favor.” Luke 4:18-19
Tracy Watson – Director of Music Ministries
Tracy Watson has faithfully served as Director of Music Ministries at John Knox Presbyterian Church since 2003. A gifted vocalist, pianist, and conductor, Tracy brings both joyful energy and spiritual depth to worship each week.
“Sing to the Lord with grateful hearts.” — Colossians 3:16b
He holds a Bachelor of Music Education from East Central University and a Master of Music Education from the University of Tulsa. Prior to his ministry at JKPC, Tracy spent many years in public education as an elementary music specialist and later as High School Choral Director and Vocal Music Coordinator for Sapulpa Public Schools.
“Whatever you do, work at it with all your heart, as working for the Lord.” — Colossians 3:23
In addition to his work in ministry and education, Tracy has a passion for musical theatre and recently launched a second career in real estate with Coldwell Banker Select.
At John Knox, Tracy oversees all vocal and instrumental music in worship. He directs the Sanctuary Choir and From the Heart Singers, leads the House Band, and coordinates worship music that spans traditional and contemporary styles. His leadership helps our congregation experience God’s presence through the beauty and power of music.
Judith Popp – Organist & Handbell Director
Judith Popp has been a treasured part of the worship life at John Knox Presbyterian Church since 1991. As our organist and pianist, she brings beauty, reverence, and joy to every service.
Let everything that has breath praise the Lord.” — Psalm 150:6
Judith holds a Bachelor of Music in Organ Performance from Western Michigan University and has shared her musical gifts in churches throughout Michigan, Texas, and Oklahoma. In addition to leading worship on piano and organ, she directs The Angelus Ringers, our beloved handbell choir.
“Sing to the Lord a new song; play skillfully, and shout for joy.” — Psalm 33:3
A dedicated music educator, Judith has taught private lessons and served for 20 years as an accompanist for the Owasso Public School choirs. Her love of music and ministry shines through in everything she does, echoing God’s glory through each note.
Judith and her husband, John, have been married for over 50 years. They are proud parents of three children and grandparents to three wonderful grandchildren. Her faithful service continues to inspire and uplift our congregation each week, reminding us that music is a sacred offering of the heart.
Michael Sampsill – Building Manager
Michael Sampsill serves as the Building Manager at John Knox Presbyterian Church, where he oversees the daily operations and maintenance of our campus. With dedication and attention to detail, Michael ensures that our facilities are clean, safe, and ready for worship, ministry, and community events.
“Whatever you do, work at it with all your heart, as working for the Lord, not for human masters.” — Colossians 3:23
From coordinating repairs to preparing spaces for gatherings, Michael’s work supports the mission and hospitality of our church. His reliability and care help make John Knox a welcoming place for all who walk through our doors.
“Each of you should use whatever gift you have received to serve others, as faithful stewards of God’s grace in its various forms.” — 1 Peter 4:10
We are thankful for Michael’s steady presence and behind-the-scenes service that keeps our church running smoothly.
Heide Linhares – Office Administrator
Heide Linhares serves as the Office Administrator at John Knox Presbyterian Church, where she brings organization, warmth, and a heart for service to the daily life of the church. Heide manages the church office with professionalism and care, coordinating communications, preparing bulletins and newsletters, supporting ministry leaders, and serving as a welcoming presence for members and guests alike.
“She opens her mouth with wisdom, and the teaching of kindness is on her tongue.” — Proverbs 31:26
Heide’s background in administration and her deep sense of compassion make her an invaluable part of the JKPC team. She ensures that behind every bulletin, calendar, and call is a commitment to excellence and hospitality. We are grateful for her joyful spirit and the quiet strength she brings to our shared ministry.
“Serve wholeheartedly, as if you were serving the Lord, not people.” — 1 Peter 4:10