John B. Clendenin, Jr. was born October 22, 1880 in Gallipolis, Ohio, son of John B. and Elizabeth McGuery. He married Mildred Myrtle Houke (Houck) at the First M.E. Church in Newark, Ohio, on October 7, 1915.
The Newark Daily Advocate of June 15, 1895, reported that John's father, (Captain) John B. Clendenin, Sr. had started serving a sentence of three years for grand larceny at the Ohio
By 1915 the Clendenins had moved to Gallipolis, Ohio. In 1917, John was manager and owner of the Libby Hotel at 444 Second Avenue. The Clendenins lived in the back of the first floor of the hotel. The Clendenins ran the hotel until the mid 1960s. John died December 22, 1967.