Did you get the place of death from her death certificate? If so, was there anything other than St Helen's House, Newcastle as the address? (though street addresses were often not recorded if it was a nursing home )
Newcastle Evening Chronicle
29th May 1900 page 2 col 1
McLane - Byker. 59 Avondale Road on 27th inst., aged 77, Hannah, the widow of the late John McLane. To be interred Wednesday, at Jesmond Cemetery: lift at 2.30 p.m. All friends kindly invited. R.I.P
The Newcastle Electoral register shows a Patrick 'McLean' as registered to vote at 59 Avondale Road, Byker in the 1900-1901 register.
If St Helen's House is the place of death on the cert then perhaps she died at a nursing home but the funeral left from Avondale Road and Patrick McLean was a relative?
Boo