I have spoken to my father, John Brian Westwell, who was actually born in Farnsworth, Bolton, 1937.Not Bath.He lived in Bath as a young child, though.
His grandfather Lingard had two sons, Lingard jr and Charles (Charles is my father's dad).My dad is not sure if Lingard sr had any other children, he doesn't recall any, but there was a Eunice (he thinks Eunice may have been the name of Lingard jr's wife, but it is possible she was Lingard sr's daughter).
He thinks that Lingard sr was married to Ethal May Westwell (nee Jones).He is not 100% sure but thinks Lingard was Presbyterian and that he died and was buried in Rishton, Lancashire.
The last time my father saw his grandfather Lingard sr was when my oldest sister was a baby.
I hope this helps and that we can start to piece things together.