January 9, 1870 – Joseph B Strauss, American civil engineer (d. 1938)
January 10, 1968 – Joseph Lyle Menendez, convicted (along with his brother) in a highly publicized trial for the shotgun murders in 1989 of their parents, Jose and Kitty Menendez, residents of Beverly Hills, California.
January 11, 1815 – Sir John Alexander Macdonald, GCB, KCMG, PC, PC (Can), QC, the first Prime Minister of Canada.
January 12, 1874 – Carl Graham Fisher, an American entrepreneur and one of the best known and active promoters of the Florida land boom of the 1920s.
January 13, 1970 – Marco Pantani, an Italian road racing cyclist.
January 14, 1804 – Sir Hugh Owen, a significant Welsh educator.
January 15, 1957 – Jef Aérosol, a French stencil graffiti artist.