No sources. None whatsoever, despite appearances. His daughter married a Chief Justice, but there is no evidence this man was ever himself a chief justice.
https://en.wikipedia.org/wiki/William_Gascoigne
https://en.wikipedia.org/wiki/Lord_Chief_Justice_of_England_and_Wales
Ironically, the man who was a chief justice in reality -- is not recognized as such on Geni. So I get the impression someone was confused by the fact that it was his daughter who married a chief justice, and that very little substantial documentation was completed for this MP.