Birth year estimate based on married 1715 at age 22.
May have died as early as 1720, could have lived much longer.
Only clear date is land transaction in 1718, recorded in 1719, and birth of William in April 1719.
We presume at this time that son, Jasper, was born before William. (S1)
References
↑ Maryland Genealogical Society Bulletin, Spring 2003, Vol. 44, No. 2 218-238.
Article entitled: "Richard Brightwell Family in Maryland, 1640s to 1740s" compiled by William L. Smith