Could George Egglestone have married a Hannah E. Parker 1 July 1912 in South Shields?
George was with a Hannah on the 1939 ( she appeared to be his wife). From memory, there was only one blacked out name with them, but the poor guy was a prisoner of war in WW1, so they lost many years out of creating a family.
On Florence Guthrie's side, I think this is the right family:
David Guthrie b. abt 1869
Isabella Guthrie b. abt 1872
Siblings
Hannah Guthrie b. abt 1892
Annie Guthrie b. abt 1894
Sarah Jane Guthrie b. abt 1897
Isabella Guthrie b. 10 Apr 1900 Possibly m. John Wilkinson
Mary Elizabeth Guthrie b. abt 1905
John William Guthrie b. abt 1909
I have only looked for Isabella and although I cannot find a marriage anywhere, her baptism states actual birth date was 10 Apr 1900 which is a match for an Isabella H. Wilkinson, husband John on the '39, living in Seaham, Durham. Could just be coincidence though, or it's a second marriage for Isabella.