She served at All Saints, Austin; St. James’, LaGrange ; and St. James’, Conroe before her election in 2006. Bishop Harrison helped develop Safeguarding training for the Diocese after it was mandated by the Church’s General Convention in 2003 and helped set the standard for the rest of the Episcopal Church. She also chaired the boards of a number of diocesan institutions: El Buen Samaritano, a social service agency for immigrants in Austin; Seminary of the Southwest, Austin; St. Stephen’s Episcopal School, Austin; and St. Luke’s Episcopal Health System, Houston.