Liz

I searched Lancashire UKBMD for Catherine Cain marriage 1921-31 anywhere in Lancashire. There were no matches for 1921,22,26,27,29, but it did throw up the following to:

Richard Topping, Blackburn RO 1923, ref RM/214/200
Joseph William Shannon, Preston RO 1924, ref Preston/186/46
James Till, West Derby RO Liverpool 1924, Reg_WD/425/133
Gilbert Dennett, Wigan RO 1925, ref Row/162/87
Thomas Cameron, Liverpool RO 1928, ref Reg_LP/401/249
John E Shadley, St George, Everton, Liverpool 1931, ref 2018WD/18/490

I've ignored Mallon & Kerr