Hello Andrew,
Here is your family on the 1881. census living in Auckinleck, Ayrshire.
Address, 5Th. Row no 218.
Andrew Mc Knight, Head, Ironstone Miner, M. age 49 years, M. born Down Newtonards, Ireland,
Sarah Mc Knight, Wife, M. age 46 years, F. born Down Newtonards, Ireland,
Andrew Mc Knight, Son, Pupil Teacher, age 17 years, M. born Dalry, Ayr,
William Mc Knight, Son, Ironstone Miner, age 14 years, M. born Dalry, Ayr,
John Mc Knight, Son, Scholar, Age 9 years, M. born Dalry, Ayr,
James Mc Knight, Son, Scholar, age 7 years, M. born Dalry, Ayr,
Maggie Mc Knight, Daur, age 4 years, F. born Auchinleck, Ayr.
Regards,
Jonn.