Walkelin de Duston
Walkelin was born about 1140 in Duston, Northamptonshire, England.

 Alice Austercarus
Alice was born about 1145 in Weekley, Northamptonshire, England.

 Sir William de Duston I
William was born about 1169 in Duston, Northamptonshire, England.  He died in 1234.