Hi Sandymc47,
It seems the death reg you found is very possibly correct ......but I have just discovered something else a little puzzling

I think John Frederick Wass was calling himself "Frederick Johnson" in 1901 -and is lodging with Clara Brannan
1901
18 Bailey St Sheffield Yks
Clara Brannan Head MARRIED 45 Sheffield Yks
Joseph Phillips son 17 Engineer Turner & Fitter London
Albert Phillips son 14 Errand Boy Sheffield
Grace brannan daughter 6 Sheffield
Bernard Brannan son 3 Sheffield
FREDERICK JOHNSON lodger MARRIED 48 Tailor Grantham Notts
Lily Johnson Lodger 7 Grantham
RG13 4361 64 21
so both Clara and "Frederick" were married - do you think they had left their respective spouses ?
and who was Lily Johnson? -she could be Sarah (John F's first wife)'s child???
It looks like Clara Brannan was married to a Mr Phillips first???
And where is Agnes mary???
1911 some of the Brannan children are in the same household as John Frederic
Think more investigation is needed
Suz