Good Evening - I've just stumbled upon this thread more or less by accident.
Thaddeus (aka Teddy/Ted) Ketterick 1894-1953 married Julia Purcell 1890-1949 in Alloa in 1923.
Julia was the older sister of my maternal grandmother. The couple had no children, although both had several siblings.
If I've done my basic homework correctly, Teddy's father was John Kettrick 1871-1933, although his birth year might be 1869/1870, records are a bit unclear. So I'm thinking that would be John's photo at the start of this thread.
So Ted's paternal grandfather would be Titus, born in Ireland 1845 or thereabouts.
Teddy was a miner and lived in the miner's row 12 Devon Village, Fishcross, near Sauchie. I believe his brother Alexander may have lived a few doors away at some point.