Found that I put the following notes on an old webpage of mine (before I got stricter with myself about placing my sources in!):
"In any case after Ivo and Ralf, there is a long gap in the records for definite sightings in England of this family. While it is not clear how later families with this surname connect back to Ivo and/or the de Lancasters, there were some who were specifically in the area of Ivo's possessions in Cumbria, most strikingly a second Ivo de Tailboys, chamberlain of Robert de Veteripont. He possessed land in Cliburn, and the neighbouring parishes of Bampton and Askham, in Westmorland, and apparently through a marriage of about 1209, also Hepple, in Northumberland and Hurworth in Durham. His descendants came to hold land in Lincolnshire"