Place of birth: Cleveland, Ohio; WWI Service: Co. D 15 Infantry, NY (369 Inf), Pvt, Served Overseas December 2, 1917 to February 12, 1919; residence 2325 7th Ave, New York.  

Leroy Parker in the New York, U.S., Abstracts of World War I Military Service, 1917-1919, Ancestry.com