The Rev. Chuck Treadwell


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Chuck grew up in South Carolina, Georgia, and Kentucky in a loving family full of Baptist clergy. He attended Georgetown College, receiving his Bachelor of Arts degree in Psychology in 1982. Chuck moved to Texas to work at a residential treatment center for emotionally disturbed teenagers. He met his wife, Chris, a nursing student at U.T.A., at a health club (a chique 80’s couple!) who introduced him to the Episcopal Church. They married in 1985, the same year he was confirmed.

With the zeal of a convert, Chuck went to seminary at the University of the South in Sewanee, TN. After graduating in 1989, Chuck was ordained a deacon at St. Matthew’s Cathedral in Dallas that same year. His first clergy position was at St. Michael and All Angels, Dallas, where he was ordained a priest. While there, he served as a curate and priest to Young Single Adults, and later, as the School Chaplain. In 1993, Father Chuck dove headlong into being a rector for the first time at St. Peter’s in McKinney, TX. Eleven years later, he moved to Waco to be the rector of St. Paul’s, where he began serving in July 2004.  On Palm Sunday, March 29, 2016, Chuck began serving as the 14th rector of St. David’s in Austin.

In the spring of 2014, Father Chuck completed a Doctor of Ministry from Sewanee. Along with his regular duties, Father Chuck has served in various capacities in Diocesan ministry. For nearly a decade he has served as co-facilitator for “Curate Camp”, a diocesan ministry for newly ordained clergy. Many of the Curates in this program served at St. David’s.

Father Chuck and Chris have three children – Caleb, Colton, and Caroline. With the time not committed to family and the priesthood, Father Chuck is an avid hunter, hiker, fisherman, and guitar player.

The Rev. Katie Wright

Associate Rector

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The Rev. Katie Wright joined St. David’s Episcopal Church as the Associate Rector in August of 2012.  She served as Locum Tenens from February 2015 until March 2016, when she gratefully returned to being the Associate.  She serves on the Boards of The Episcopal Health Foundation and Capital IDEA.  Previously as rector of St. Andrew’s in Elyria, Ohio, she has also served as Associate Rector in charge of youth and family ministries at St. Mark’s in Glen Ellyn, Illinois; Youth Minister at Ascension in Dallas, Texas; and Director of Children’s Ministries at Transfiguration in Dallas, Texas.  She received her Master of Divinity degree, Anglican Track, from Perkins School of Theology at SMU and her Bachelor of Arts degree from Claremont McKenna College.

Katie was born in Phoenix, Arizona and is married to Jimmy Wright.  They have three children:  Luke (1997), Rachel (1999) and Sarah (2011…yes 2011).

The Rev. Bob Gribble

Associate Priest

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Bob Gribble is a native of Houston, but he and his wife, Gretchen, got to Austin as fast as they could. Bob got his BBA from the University of Texas in 1976 and his Master of Divinity from Virginia Seminary in 1979. He has served five Episcopal parishes in and around the Houston area for more than 30 Years. Bob retired in 2009, but is out of retirement now assisting at St. David’s where he works part-time assisting with pastoral care needs of the parish.


The Rev. Chad McCall

Associate Priest

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The Rev. Chad McCall was ordained a priest in February 2012 and has served at St Peter’s in Lago Vista, Texas as Pastoral Leader and Vicar since September 2010. Chad was born in Columbus, Ohio.  He graduated from Davidson College in 1993 with a BA in Economics and received his MBA from Georgia Institute of Technology in 1995. After working in healthcare and finance for over 10 years, Chad experienced a call to ordained ministry and entered Duke Divinity School where he earned his MDIV in 2007. Chad has lived in Austin for the last 11+ years and has two children, Carlie and Cade.

The Rev. Michael Horvath


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Michael was ordained to the priesthood in the Diocese of New York in September 2017, and graduated from The General Theological Seminary. While in seminary, he was a seminarian intern at Saint Thomas Church Fifth Avenue, St. Augustine’s Croton-on-Hudson, and St. Edward the Martyr. Prior to a call to ordained ministry, Michael was a corporate lawyer in Boston and New York City, specializing in the financial services and investment sectors. Michael graduated with a B.A. in Political Science from Virginia Commonwealth University, and a Juris Doctor from the University of Richmond Law School. He was born in the Philippines, and grew up in Virginia where his family still lives. Michael and his husband, Charles Calhoun, have two dogs – Max and Henry. Michael is an avid baker, which, by necessity, also makes him an avid runner.


The Rev. Dr. Carol Petty

Assisting Priest

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Carol retired from her position as Canon for Wellness and Care and Safe Church Minister for the Episcopal Diocese of Texas (EDOT) in September 2018.  She works in EDOT’s Austin Diocesan Center, located on the campus of the Seminary of the Southwest.  At St. David’s, Carol provides clergy support as needed. She also serves monthly as Sacramentalist for the SoCo Episcopal Community, a ministry of St. David’s.

Prior to moving to Austin, she served as Rector of Holy Comforter Episcopal Church in Angleton, Texas. Carol is married to George Zwicker (retired) and together they have six grown children and 13 (so far!) grandchildren.  Carol and George are pleased to make St. David’s their home parish.

The Rev. Dr. Dan Joslyn-Siemiatkoski

Assisting Priest

Dan Joslyn-Siemiatkoski is the Duncalf-Villavoso Professor of Church History at Seminary of the Southwest, an Episcopal Church seminary here in Austin. At the seminary, Dan covers the whole range of Christian history, with special interests in Anglican and Episcopal history and Jewish-Christian relations. He is married to Jennifer Joslyn-Siemiatkoski, who sings in St. David’s Singers and serves as a lector. They have two children, Greg and Miriam, who serve as acolytes and sing in the youth choir.


Michael Matkin

Diocese of Oklahoma

Michael Matkin is a postulant of the Diocese of Oklahoma pursuing a master’s in divinity at Seminary of the Southwest. Prior to entering the Episcopal Church, he served on staff with churches in the Pentecostal and evangelical traditions. He founded and was the first director of The Brendan Center, an institution in Bellingham, WA committed to nurturing an incarnational Christian presence in public life. Michael is the author of The Complete Idiot’s Guide to the Gnostic Gospels and The Complete Idiot’s Guide to Early Christianity, reflecting his interest in early Church history. He and his high school sweetheart, Christine, have been married for 26 years and have two teenage daughters, Emily and Elaina.