I just posted an old newspaper story reporting on the commissions in the Ayrshire Yeomanry Cavalry. This was scanned from an original issue (NOT microfilm!) of the Edinburgh Gazette dated June 2, 1829, and you can see it online here:http://theoldentimes.com/ayryeocav29scots.html
Ordinarily, I list all the surnames, but some of the names appear to be titles and I'm not sure what to put for the surname on these! Other surnames do include HAMILTON & CAMPBELL.
I hope this is of interest!