Correspondence, 1920 - 1990

This series consists predominantly of correspondence sent by Leo to his parents, Patrick and Lilian; his sister Catherine, later Sister Christina, SSJ (1908-1986); and his maternal aunt Catherine M. Aman (1877-1952), known in religion as Sister Camillus, SSJ, beginning with his schooling at St. Andrew's Preparatory Seminary (Rochester) in 1920. Also included in the series are letters between other family members.

Relatives who appear less frequently in the correspondence are Leo's in-laws and other siblings:
-- George P. (1903-1949) and wife Margaret E. Linton (1906-2005; m. 1949)
-- Raymond F. (1905-1994), wife Florence A. Hill (1908-1995; m. 1927) -- Henry J. (1911-1952) and wife Jeanne M. Erbland (1918–2000; m. 1941)
-- Concilia "Connie" B. (1913–2004)
-- Norbert C. (1917–2000) and wife Hazel E. Hosier (1921–2015; m. 1940)
-- Margaret B. (1915–1999) and husband Harold Dennie (1917–1978; m. 1939)