Today is the 123rd birthday of James J. Kilroy. He is considered as one of the best candidates for the origin of the phrase "Kilroy was Here". The relevant portion is here: One theory identifies James J. Kilroy (1902–1962), an American shipyard inspector, as the man behind the signature.[7] James Kilroy had served on the Boston City Council and represented the Roxbury district in the Massachusetts Legislature during the 1930s. He worked at the Fore River Shipyard in Quincy during the war ch...