H. M. (Henry Mauger) London (1879-1939) was the son of Henry Armand London (1846-1918) and Bettie Jackson London (1853-1930) of Pittsboro, N.C. He was educated at the University of North Carolina and Columbian University (later George Washington University). London worked for the United States Census Bureau, 1900-1902; practiced law in Pittsboro, N.C., 1903-1913; was mayor of Pittsboro, 1903-1905; representative from Chatham County in the North Carolina House of Representatives, 1907; represented Chatham in the North Carolina Senate, 1911; was deputy collector of internal revenue in North Carolina, 1913-1919; and served as North Carolina's Legislative Librarian, 1919-1939. In addition, he was secretary of the Univesity of North Carolina Board of Trustees, 1921-1939; secretary of the State Bar Incorporated, 1933-1938; secretary-treasurer of the State Bar Association; and treasurer of the Episcopal Diocese of North Carolina.
London married Mary Elliot in November 1908. They had two children, Henry Mauger Junior (born 1910) and George Elliot (born 1912).
From the guide to the H. M. (Henry Mauger) London Papers, ., 1808-1945, (bulk 1896-1908), (University of North Carolina at Chapel Hill. Library. Southern Historical Collection.)