George J. Nostrand (fl. 1920-30) was an American lithographer and publisher of maps and views, primarily of New York City. He appears to have been in the employ of the Arthur Ohman Map Co. until the firm’s closing in 1925. Thereafter he operated from the same location under his own name as late as 1939. More by this mapmaker...

August Reinhold Ohman (May 3, 1859 - April 22, 1934) was a Swedish-American map publisher, engraver, and draftsman. Ohman arrived in the United States in 1893. He married Alice Mary Colton (1868 - 193x), Charles B. Colton's daughter, on January 5, 1897. A year later, in 1898, Ohman began working with G.W. and C.B. Colton, when the firm became known as Colton, Ohman, and Company, which existed until about 1901. After that year, Ohman operated his own firm under his own name August R. Ohman, and advertised his firm as the 'successors to the Coltons'. The Ohman Map Company, as it became known, moved to 258 Broadway around 1914, where it operated until around 1925. George J. Nostrand, who became a major map publisher, operated in the same buiding and possibly even worked for Ohman. Some of Nostrand's work is very similar to Ohman's, particularly his bird's eye view of New York City. Learn More...

Sherman Mills Fairchild (April 7, 1896 – March 28, 1971) was an American inventor, entrepreneur, pilot, and photographer active in New York in the first half of the 20th century. He was the son of George Winthrop Fairchild, a Republican Congressman and Co-Founder of IBM. He inherited his father's vast estate in 1924, becoming IBM's largest shareholder. After studying at Harvard, the University of Arizona, and Columbia University, Fairchild invented the synchronized camera shutter and flash – a significant advancement in photography. Sherman was chronically in poor health, nonetheless, when World War I broke out he volunteered for the military. Due to his health, he was rejected by the military, so he decided to contribute to the war effort in another way. He took a contract with the U.S. Government to develop a new kind of aerial camera capable of taking sequentially timed photographs for advanced aerial terrain mapping. This invention led to the founding of the Fairchild Aerial Camera Corporation (later the Fairchild Camera and Instrument Company) in 1920. In 1921, he purchased a surplus World War I Fokker D. VII biplane and expanded with his own aerial survey company, Fairchild Aerial Surveys. His first map, the first aerial photo-survey of a major city, was of Newark, New Jersey. This was quickly followed by a large aerial survey of Manhattan, also completed in 1921. Other cities followed. Later the Fairchild Corporation developed even more advanced cameras, including the Fairchild Lunar Mapping Camera, used by NASA to take photos of the Moon from orbit. He also founded Fairchild Aviation Corporation, which built the FC-1 and FC-2 Aircraft. The firm went on to become one of the largest military and defense contractors in the world. Fairchild died in 1971, leaving behind a $200+ million dollar estate to varies charities and foundations. Learn More...