Il est marié avec Anna May de la Montanye.
Ils se sont mariés en l'an 1905 à Kingston, Ulster County, New York.
698 Classon Avenue, Brooklyn, Kings County, New York. Enumerated 13 Jan 1920. Household 103, Family 535. William F. Bullens, age 38, foreman, born New York; wife Anna M. age 34.
10-WD Kingston, Ulster County, New York. Household 143, Family 190. William F. Bullens, head, age 29, married 5 years, born New York; Anna M. Bullens, wife, age 24, 0 children.