John Thornhill
John was born in 1180 in Thornhill, Dewsbury, West Ride Yorkshire, England.  He died at the age of 69 in 1249 in Fixby Hall, Huddersfield, Yorkshire, England.

 Olive de la Mare
Olive de was born about 1200 in Dicton, Yorkshire, England.

 Walter de Thornhill
Walter de was born about 1223 in Thornhill, Dewsbury, West Ride Yorkshire, England.

 Richard Thornhill , Sir Knight
Richard was born about 1238 in Thornhill, Dewsbury, West Ride Yorkshire, England.  He died in 1287.