@ ard, a quick look, found a few Gemmills mentioned in "Old Glasgow Weavers" a John Gemmil, wobster (weaver) Aug 1613, warned by the craft deacon against beating his apprentice John Park unmercifully under pain of fyve punds fine, the said John Park warned also to dae as he was tellt!
An Alexander Gemmill, May 1614 fined fower pund for calling the deacon ane kneifvisch knave, not fit tae be ane deacon, and much else besides!
A Nichol Gemmill was one of the signatories to an Agreement between the Glasgow weavers and the weavers of Gorbals an Bridgend in 1605.
There were still Gemmells who were members of the Weavers Incorporation in Victorian times, William Gemmell, gardener 1879, Adam Gemmell, 1881 & another William Gemmell in 1883.
Bests,
Skoosh.