Answer: OPPER

AnswerCrossword Clue
OPPERHappy Hooligan's creator (1857-1937).
OPPERCreator of Happy Hooligan.
OPPERCartoonist of Alphonse and Gaston.
OPPERHappy Hooligan cartoonist.
OPPER"Happy Hooligan" cartoonist.
OPPERU. S. cartoonist
OPPERCartoonist Frederick
OPPER"Happy Hooligan" cartoonist
OPPERHappy Hooligan's creator