Series contains both incoming and outgoing letters from members of the W.I.L.P.F., as well as correspondence summaries from 1988-1997. Files and items within the series predominantly include the letters sent by Sheila Young to various domestic and international world leaders, including but not limited to: multiple Canadian Prime Ministers, including Pierre Elliot Trudeau, John Diefenbaker, and Lester B. Pearson; the president of the Republic of Korea, Park Chung-hee; and the president of Chile, Augusto Pinochet. A second W.I.L.P.F. member with a large number of correspondences included in the series is former W.I.L.P.F. president Carolyn Lacey Kline, and includes her correspondences with former Prime Minister Joe Clark, and sitting Prime Ministers Brian Mulroney, and Jean Chrétien.