I cannot find any online records for Hull and I don't live in the area.
For the future it might help you to know that coverage of the Hull area is good on the free site
www.yorkshirebmd.org.uk. (Bear in mind that this site yields references relevant for orders from the local register offices and not the GRO; the references are not transferable between the two).
On that site you will see this marriage, which may represent a remarriage for Clara's widower Charles:
1931 BRUMHEAD Charles H
STEPHENSON Eliza
St Stephens Hull JD/13/300
(FreeBMD has the same marriage with the GRO reference: Dec qtr 1931 Hull 9d 629)
Anna