When William Henry Webb was born on 17 August 1841, in Greene, Ohio, United States, his father, Henry Webb, was 28 and his mother, Rebecca Ann Martin, was 23. He married Sarah Henderson on 25 July 1864, in Allen, Ohio, United States. They were the parents of at least 3 sons and 3 daughters. He lived in Perry Township, Allen, Ohio, United States in 1880 and Sugar Creek Township, Greene, Ohio, United States for about 10 years. He died on 2 September 1919, in Bellbrook, Greene, Ohio, United States, at the age of 78, and was buried in Bellbrook Cemetery, Bellbrook, Greene, Ohio, United States.