Luther Daniels Bradley (September 29, 1853 – January 9, 1917) was an American illustrator and political cartoonist associated with the Chicago Daily News.

[4] He popularized Carrington's "King Working Man" figure, a crowned giant representing organized labor.

He successively worked for the Chicago Daily Journal (1894) and Inter Ocean (1894–1898), and in 1899 published the children's books Our Indians and Wonderful Willie!.

[11] Cartoon historian Richard Marschall notes Bradley was not the only antiwar cartoonist, but was "perhaps the most eloquent in illustrating his arguments.

"[9] He married Agnes Floyd Smith in Evanston on October 31, 1901, and had four children: Francis, John Freeman, Sarah Elizabeth, and Margaret.

Two days later, a tribute cartoon penned by John T. McCutcheon appeared on the front page of the Chicago Daily Tribune.