Originally from Ontario, the Malloch family, Archibald Edward Malloch, 1844-1919 and his son Thomas Archibald Malloch, 1887-1953, were closely associated with Sir William Osler. The father, Archibald Edward Malloch, took his training at the University of Glasgow, studying under Joseph Lister who chose him as his house-surgeon in 1868. Malloch practiced mainly in Hamilton, Ontario and helped introduce Lister's antiseptic principles to North America. His son, Thomas Archibald Malloch, received his M.D., C.M. from McGill University in 1913 and served during World War I. He was a Demonstrator in Medicine at McGill University, 1923-1925. From 1926 until shortly before his death he was Librarian of the New York Academy of Medicine. He wrote several books, including William Harvey, in 1929. Thomas Archibald Malloch was a close friend of Sir William Osler and Lady Osler.