The collection contains source material on the personal life of Henrietta Kathleen Warren Milne, as well as her involvement with the Memphremagog Library, the Pinecroft retirement home, her further community involvement, and she and her family's finances. It also contains information regarding the historian Leonard Auger, Dr. Austin Bowen, and Henrietta Kathleen's family and friends, including some geneological information. It ranges from approximately 1700 to 2004 and covers mainly the Magog area with some coverage of the wider Eastern Townships. It consists mainly of correspondence, historical and constituent documents, minutes, notes, financial papers, clippings, and photographs. The collection is comprised of the following series: Memphremagog Library ([196-?]-1995, 2001), Pinecroft Residence (1967-1994), Further Community Involvement ([194-?]-1992), Historical Documents (1796-1988), Personal Life ([19--?]-[2004?]), Leonard Auger Material ([17--?]-1985), Dr. George Austin Bowen (1894-1943), Graphic Materials ([18--?]-[2002?]), Family History ([1776-1780?], [1829?], [184-?]-[1994?]), Other Family and Friends ([1915-1999?]), Business and Finances ([1930-1982?]).