https://collections.britishart.yale.edu/catalog/tms:385|An Unfinished Study of the Head of James Thomson|William Aikmanhttps://collections.britishart.yale.edu/catalog/tms:29562|John Campbell, 2nd Duke of Argyll, 1st Duke of Greenwich|William Aikmanhttps://collections.britishart.yale.edu/catalog/tms:32067|William Aikman|after William Aikmanhttps://collections.britishart.yale.edu/catalog/tms:49512|William Kent|after William Aikmanhttps://collections.britishart.yale.edu/catalog/tms:49513|William Kent|after William Aikman