William Prest was one of the founding members of the Prest Family of Chilliwack. Their farm was one of the first to farm on the land in Chilliwack. William Prest also married a First Nation woman, Mary “Tata” Benn of what is now Sqwah First Nation, one of the largest communities of Chilliwack's Stó:lō First Nation. From the earliest days of Chilliwack, the Prest Family thus had both settler and First Nation roots. Prest Road, which runs 7.3 kilometres (4.5 mi) south from Yale Road East to Bailey Road, is now one of the most important traffic arteries of Chilliwack and was named after this family.