According to Dissections: Plane & Fancy by Greg Norman Frederickson... "Michael Goldberg was born in New York City in 1902, the first American-born child of Polish immigrants. He was raised in Philadelphia and earned a B.S. in electrical engineering from the University of Pennsylvania in 1925. After a year with the Philadelphia Electric Company, he joined the Navy Department's Bureau of Ordnance in Washington, D.C. Evening studies led to an M.A. in mathematics from George Washington University in 1929. For the navy he worked on gunfire control systems, and eventually missile fire control systems, until he retired in 1963 from what had become the Bureau of Naval Weapons." "Mathematics was Goldberg's principal hobby. He published over 60 papers in areas such as dissection problems, mechanical linkages, plane and solid rotors, and packing problems. Each summer, he planned the family vacation as a trip to meetings of the Mathematical Association of America and other organizations. Michael Goldberg died in 1990."