John Russell Malloch
Malloch was born at Milton of Campsie in Stirlingshire, Scotland. His widowed father had one son, James Malloch (born 1873) when he married John Russell's mother, Margaret Stirling, on 30 August 1875. He and several others of his family worked at a textile factory in the area, but he spent his spare time collecting insects in the fields. His first published paper (1897) describes a type of migrating butterfly.
In 1903 Malloch sold his extensive collection to the Glasgow Museum. He continued to collect, but began to concentrate on Diptera from that time forward. Before emigrating in 1910, he donated the remainder of his collection (13,000 flies) to the Royal Glasgow Museum.
Little is known of Malloch's education. He listed a university degree from Glasgow on his job applications in the USA, but this has not been verified by university records from that area.
In 1899 Malloch married Elizabeth Bryan. They had four children: John Stirling (1900), Bessie (1903), James Alexander (1904), and George Graham (1910). In 1910 Malloch emigrated to the United States, settling in Urbana, Illinois. His family did not follow until 1919. By then he had become attached to his housekeeper, Annie Ingle, so after his family's arrival the couple were divorced and Malloch married Mrs Ingle (who had a daughter by a previous marriage). Malloch and Ingle did not have any further children.
By 1912 Malloch had obtained employment in the scientific arena, and spent the remainder of his life studying, collecting, and writing about Diptera, Hymenoptera and other insects in association with the Smithsonian  In 1914 he published a seminal study listing and providing detailed categorization to the known Diptera order.
- Malloch later described his Scottish household as "a typical Scottish family of eight, 3 sisters and 5 brothers".
- History of the USNM Diptera Collection
-  The Malloch Society, Report No. 4, John Russell Malloch (1875-1963) - His early life and contribution to entomology in Scotland
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