Lewis was the son of William H. and Nancy Ann (Chambers) Curl. He had at least one brother Absalom Alonzo born in 1856. Lewis was married several times. The first was to Caroline Eliza Offenbacker who was the mother of their son, Charles Henry born in 1872-1948 and is buried a Greenwood Cemetery, Ohio. Caroline died on 25 NOV 1881. She is buried at Cost Cemetery, Ohio. He second married Florence Ella Neal on 25 JUL 1882 in Auglaize Co where she was from. They had a daughter, Bessie Mae, on 7 JUN 1884 in Miami, Logan Co., Ohio. He third married a women named May in 1890. Lewis and May are listed in the 1900 census for Clinton Twp, Shelby Co, Ohio on Popular St.