Boston (Mass.). Registry Dept; Whitmore, W.H.; Appleton, W.S.; McGlenen, E.W.; Watkins, W.K. (1900). Records Relating to the Early History of Boston ... Rockwell and Churchill, City Printers. p. 139. Retrieved 2017-01-07.
The Parliamentary Papers reported a certificate of Archbishop Juxon that "the bearer William Levett was one of the five persons whom his late Majesty (Charles I) the day before his death did, in consideration of his loyalty and faithful service, recommend to the care and provision of his present Majesty."[2]