Thanks, Colin

I've now tracked him and he's a William Armstrong Coutts/Coats who spent time with his maternal grandparents in Irongray and married an Agnes Brown in Sorn in Jan 1865. He died in Newington (Longmore Hospital) on Oct 17th 1904 and was a schoolmaster.
His son,(another one for abbreviating) Thos A Coutts, was the informant.
Gadget
Add - for completeness
