Hello Yvonne
Just double checked the 1881 census for you.
The only 74 year old George Duthie on the census is the one who dies in 1885.
On the census he is living (a widower), at Mary Villea, Woodside, the address where he dies 4 years later.
With him in the house is
George B Duthie unmarried 20 years old, Grandson, Printer Apprentice (Compositor). Note: on death entry the initial is definitely 'F'.
John Chambers 48 years old, Nephew, Printer Lithgraphic
Rgards, Steve
If this is your man was Jane Suitor a first or second wife?
Regards, Steve