AS SEEN IN:
William Erasmus "Bill" Compton is a fictional character from the The Southern Vampire Mysteries/Sookie Stackhouse series by author Charlaine Harris. He is a vampire and is introduced in the first novel in the series, "Dead Until Dark", and has appeared in all of the novels since.
In the book series, Bill was born on April 9, 1840. He lived in Bon Temps, Louisiana, and fought for the South during the Civil War. He was a married farmer with three children (there is inconsistency in the storyline, with Bill telling Sookie that he had five living children with his wife in "Dead Until Dark"). On November 20, 1868, some years after the war, he was made a vampire by Lorena, with whom he had a long and stormy relationship.
If I remember correctly from the TV series, he was on his way home from the war when he was attacked and turned by Lorena.