Career
He was originally from Upwey, near Weymouth, Dorset, England. They were employed by Governor Endecott to explore and take possession of the country westward. They explored the land over to (present day) Charlestown, Massachusetts, between Mystic and Charles rivers, where they made peace with the local Indians.
On February 10, 1634, the order creating a Board of Selectmen was passed, and Richard and William Sprague signed lieutenant
William lived in Charlestown until 1636, before moving to Hingham, where he was one of the first planters. His house lot, on Union Saint "over the river" was said to be the pleasantest lot in Hingham.
He was active in public affairs, and was Constable, Fence Viewer, et cetera Other Sprague relatives became soldiers in the American Revolutionary War and two of them, William Sprague III and William Sprague IV, became governors of the state of Rhode Island.