John Quincy Stewart (September 10, 1894 – March 19, 1972) was an American astrophysicist.
He was later a research engineer in the American Telephone and Telegraph Company.
He became interested in social physics in 1946, (first investigated in 1693 by astronomer Edmond Halley), demonstrating the use of physical laws in the area of social sciences,[2] for example, demographic gravitation.
[3] He co-wrote an influential two-volume textbook in 1927 with Raymond Smith Dugan and Henry Norris Russell: Astronomy: A Revision of Young’s Manual of Astronomy (Ginn & Co., Boston, 1926–27, 1938, 1945).
There were two volumes: the first was The Solar System and the second was Astrophysics and Stellar Astronomy.