Rev. Dr. Ridge Orr is the Moderator of Prinsep Street Presbyterian Church (PSPC). Born and raised in Pittsburgh, Pennsylvania, Rev. Orr was ordained as a Presbyterian minister in 1993 in the Associate Reformed Presbyterian denomination in the U.S. He earned his Master of Divinity at Pittsburgh Theological Seminary and his Doctor of Ministry from Reformed Theological Seminary in Orlando, Florida.

Before being called to serve as pastor at PSPC in mid-2003, Rev. Orr and his wife Connie served as missionaries to S. Korea for nearly 20 years with OMF International. During their years in S. Korea, the Orrs worked in partnership with InterVarsity Christian Fellowship doing evangelism and discipleship amongst university students, and later Rev. Orr shifted his focus to the training of Korean missionaries. The Orrs have been married for 32 years and are still full members of OMF, retaining their love for cross-cultural ministry in Asia.