When William C Dolby was born on 17 December 1860, in Pennsylvania, United States, his father, Christian Dolby, was 43 and his mother, Catherine Amanda Zimmerman, was 41. He married Sarah Ann Thornsberry on 2 March 1882, in Seymour, Webster, Missouri, United States. They were the parents of at least 1 daughter. He lived in West Buffalo Township, Union, Pennsylvania, United States in 1860 and Hazelwood Township, Webster, Missouri, United States in 1880. He died on 10 December 1919, in Seymour, Webster, Missouri, United States, at the age of 58, and was buried in Seymour, Webster, Missouri, United States.