Wivenhoe,
Not on the Susan Fimister (nee Heggie) side that I have come across, Susan is the blood relative.
Susan met James Fimister in Renfrewshire and they left soon after for Constantinaple.
He being Paisley born from Irish family with one brother.
They claim to have married in Constantinople in 1868 and returned prior to her death in 1872.
1 Russell Pl does seem to be full to the rafters in 1871 & 1872 and very accommodating to take in a person dying of TB along with her husband & child.
Still, it may have been a large enough home to rent out a room.
Thank you for the info, I shall certainly be searching further.
A perplexed John.