Whilst the active and turbulent cleric William de Manthorpe spent part of his career in East Anglia, there are a number of Lincolnshire connections which appear to link him to the Bourne family, as well as a couple of references that might link him to the village near Grantham.

The most extensive information about Lincolnshire Manthorpes relates to three clerics. There is some evidence that two of them belonged to the Bourne family.

Manthorpe near Bourne is the only one of the three settlements called Manthorp(e) to be mentioned in the Domesday Book (Mannetorp). It was mentioned in conjunction with Witham-on-the Hill and Toft-with-Lound.

The attractive village of Manthorpe near Grantham was first mentioned in 1185 and again in 1212, but was not a parish in the Middle Ages.

The pretty little church with its apple-green pews was built in the 19th century, and the village itself was the scene of the Manthorpe gathering in 1992.

So far only one reference has been found to a person taking his name from Menethorpe: Hugh de Menethorpe, who was prebendary of Ulleskelf (which lies to the south-west of York, south of Tadcaster).

He was recorded between 1297 and 1301. There is no evidence at present of a Menethorpe family surviving after the medieval period.