nooshie,
This is a possible but while there are lots of John Horn(e)s, they either have the wrong occupation or the wrong wife! (as in this case - and a jolly unusual wife as well - a mum again at 59

- I think not!) Any idea of age at all?
John HORN Head M 65 M Lab Plymstock-DEV
Susan HORN Wife M 65 F ---Plympton St Mary-DEV
William HORN Son M 24 M Lab Plymouth-DEV
James HORN Son U 17 M Lab Plymouth-DEV
Mary Ann Kevern HORN Daur U 6 F Scholar Plymouth-DEV
Address: 20 Moon Street, Plymouth
Plymouth Charles Martyr Plymouth, Devonshire
HO/107/1878/261 p21 FHL Film: 0221026
I'll keep looking.
Nell