Her Holy listening, c1992: CIP t.p. (Margaret Guenther) data sheet (b. 1930; Episcopal priest)

The practice of prayer, 1998: CIP t.p. (Margaret Guenther) data sheet (Guenther, Margaret B.; b. Jan. 4, 1929)

Washington post obituary, Dec. 18, 2016, via Legacy.com WWW site, viewed Dec. 20, 2016 (the Rev. Dr. Margaret B. Guenther; b. Margaret Adah Beltz, Jan. 4, 1929; m. Jack Donald Guenther, 1956; d. Dec. 11, 2016, aged 87; priest in the Episcopal Church and long-time associate rector of St. Columba's Episcopal Church in Northwest D.C.; professor emerita of ascetical theology at the General Theological Seminary in New York City, where she served for many years as director of the Center for Christian Spirituality)