My great grand father John briggs lived in harcourt street, bradford. My grand father (his son) was called william Briggs as was known a bill. I do not know if he own a motorcycle shop in salford there is nothing like that in family history. My grandfather married evelin elison around 1929 and lived in harcourt street until 1930, this is the last record in the electorol, then they moved to ardwick and stayed there for 2 or 3 years, this when they dropped off the offical map, until 1944, where they moved to coalbrook street ( i think) ardwick and then to seascale avenue, clayton in 1945/6, there they lived for nearly 40 years.
So who knows we may be related. Oh my grandfather had some brothers, I have to check my records to see who they were, but Iknow one was called Joe.