I have some McKay/Mackay ancestors I'd like to trace. I don't have much information on them though..
Hugh Mackay was born about 1760 and married Margaret ? They lived in Durness, Sutherland and had six sons.
John was born about 1807 and married Janet Gardiner. He was killed on the North West Frontier around 1840-2.
George was born in 1809 and married Anne Munro. He died in Australia in 1868.
Louis went to North America and we nothing else about him.
Don't know anything about the other three brothers.
I would appreciate a note if you come across them in your searches.

[updated: location added]