Two Button's Biography strips from 1925
Fonn was the pseudonym of a cartoonist who drew comic strips for the Belfast Telegraph in the 1920s. He drew The Doings of Dudly three days a week from 2 August 1924 until 14 March 1925. After that he drew Button's Biography at the same frequency.
His real name may have been Frederick Garnett: the Boy's Own Paper had a strip called "The Doings of Dudley" credited to that name in 1924-25.