Yipeee
Got them on the 1881 census (which took place on the 3rd April), courtesy of the IGI , with 'your' WG, aged 10 days at 'Haymount, Makerston, Roxburgh, Scotland.
William TURNBULL (head), 52, married, born Hawick Roxburgh Scotland, farm steward
Joann Gourlay TURNBULL (wife), married, 41, b.Nothumberland England
Jane TURNBULL (dau.), 14, b.Lauder Berwick Scotland, female ag lab
Janet TURNBULL (dau.), 12, b.Kelso Roxburgh Scotland, scholar
John TURNBULL (son), 11, b.Kelso Roxburgh Scotland, scholar
Annie TURNBULL (dau.), 9, b.Kelso Roxburgh Scotland, scholar
James TURNBULL (son), 7, b.Kelso Roxburgh Scotland, scholar
Isabella TURNBULL (dau.), 2, b.Kelso Roxburgh Scotland
Walter George TURNBULL (son), 10 days, b.Makerston Roxburgh Scotland
Hopefully some kind person can find them in the 1871 census.
Regards, Steve