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The following biography is from the archives of askART.
Part of the following biography was contributed by Dan Costigan, son of the artist.
A native of Providence, Rhode Island, John Costigan was a skilled landscape and figure painter who disdained portraits because "the subjects want flattering pictures."
He was orphaned and raised in New York by his aunt and uncle, the parents of songwriter, George M. Cohan. Mainly self-taught, Costigan studied briefly at the Art Students League and worked as a lithographer of theater posters. From that job he learned the printing processes that he later used in his many etchings. He began making his name in the fine arts in 1920, and throughout the decade, reaped numerous important prizes for his oils, watercolors and prints.
He served in the infantry in World War I and supported himself during the Depression with magazine illustration. For about a year during World War II, to remain financially solvent, he worked the night shift as a machine operator in a defense plant while continuing to paint and etch by day.
In the late 1960s, he enjoyed a revival of interest in his fine arts talents when more than 50 pieces were borrowed from museums and private collections to be toured nationally in a Smithsonian-sponsored Costigan retrospective.
The following biography is from the archives of Wikipedia.
Born in Providence, Rhode Island, Costigan was mainly self-taught. He is known for his strong brush stroke and an interest in the common person as a subject. He portrays his people as deeply rooted in the soil that they work, humble yet dignified and contented. His most famous mediums are oil and watercolor painting as well as etchings and lithographs. The firm that he had worked for closed during the depression and in 1920’s he decided to buy a farm in Orangeburg, New York to paint. His subjects were his wife and his child. In 1928, he became a member of the National Academy of Design.
Costigan was a cousin of the noted American showman, George M. Cohan, whose parents brought the young Costigan to New York City and were instrumental in starting him on a career in the visual arts after he and his four sisters became orphaned. John Edward married sculptor Ida Blessin. Together they had five children.