In court records 1675, William
Cowdery was described as being 24 years old or thereabouts. Making him born abt 1651.
Depositions were taken from him and George
Baynum age about 30.
The case concerned William
Cowdrey and his brother, Josias
Cowdry branding a mare and colt. (using their father's brand).
The brand was described as B.C.
I found Josias
Cowdrey owning property in 1669
Northampton Co.
This establishes him as born before 1648.