I am descended from Hugh Oldfield who moved from Doncaster to become a bell founder at Nottingham. He was, I believe, son of William Oldfield bellfounder of Doncaster (Hugh s/o William ch 7 October 1740 Doncaster St George).
The bell founders database shows William I Oldfield active in Doncaster from 1607 until 1652 (William was buried 16 July 1652 Doncaster St George), succeeded by William II Oldfield from 1652 until 1666, and then by Hugh Oldfield.
I have looked at the Doncaster parish registers and William I appears to have named 3 sons William, none of whom survived childhood (1617-1617; 1617-1620; 1621-1621). A man identified as William Oldfield Junior married at Doncaster in 1624, so presumably he was born about 1600 and not William I's son.
In an attempt to learn more about this family I have tried to widen my search. Unfortunately no wills of either William Oldfield seem to have been made or have survived and I have been unable to find any references at all to the bell foundry in the Doncaster archives catalogue. Can anyone help me please?

Thank you.
Judith