Series of letters, notes, drawings, and worksheets that Father Anthony kept from June 22, 1972 - September 29, 1974. These journal entries, written as letters, detail his spiritual journey and his life over this two-year period. The heading or title that appears on many of the entries is "A Trappist Writes to God."

Printed pamphlets, articles, brochures, post cards and a few videos relating to Cistercian history and the history of the Roman Catholic Church. Most of the materials are related to the history or observances of specific monasteries and convents and figures important in Cistercian or Roman Catholic history, in general.

Photographs, negatives, and slides, notes, booklets and papers gathered by Dr. Zakin for her research, as well as academic papers and presentations and correspondence.

Papers and research materials, including microfilms, of Father Lawrence C. Braceland, SJ, a Canadian translator and scholar of the fathers of Cistercian monasticism.

Papers of Father M. Basil Pennington, OCSO, Trappist  monk who wrote extensively on Catholic contemplative practices and was associated with the Centering Prayer movement at St. Joseph's Abbey in Spencer, Massachusetts. Drafts and typescripts of articles and books, serials and periodicals containing articles by or about Pennington, notes, correspondence, multi-media, also includes genealogical research concerning the Pennington family.

Papers of Msgr. Joseph Turk (1895-1951) including research notes, manuscript drafts, offprints, correspondence, newspaper clippings and postage stamps. The research papers and notes are concerned with the Cistercian Statuta and important figures in Cistercian history, such as Bernard of Clairvaux, William of St. Thierry and Stephen Harding. The newspaper clippings relate to mid-twentieth century politics in Yugoslavia.