The remainder of the probate information:-
Administration Durham 8 April to Elizabeth Graham widow. Effects £66 6s.
1911 census - 39 Merle Terrace, Sunderland, Durham
Elizabeth Graham Boarder Widow b 1881 Carlisle Cumberland
Marjory Graham Daughter b 1908 Sunderland Durham
Francis Edward Graham Son b 1909 Sunderland Durham
According to the inquest, Robert died at his shop and, looking at maps online, Fawcett Street is a shopping street.
These are the children from the GRO index:-
GRAHAM, MARJORIE mmn THOMPSON
GRO Reference: 1907 D Quarter in SUNDERLAND Volume 10A Page 641
GRAHAM, FRANCIS EDWARD mmn THOMPSON
GRO Reference: 1908 D Quarter in SUNDERLAND Volume 10A Page 681
There was another possible after Robert's death but on checking, it was a different family.
GRAHAM, CHRISTOPHER ALBERT mmn THOMPSON
GRO Reference: 1911 D Quarter in SUNDERLAND Volume 10A Page 1456
David