I'm a descendent of a Roderick Gollan b ~1820 Rosshire (parents George Gollan bootmaker and Mary Chisholm) who emigrated to Australia around 1839.
I've transcribed all the Gollans from the Victorian BDM register index. If anyone wants this information I'm very happy to pass it on.
It includes an Alexander Gollan d. 1884 46yo in Bullarto, Victoria – his parents are named: Donald Gollan and Catherine McKenzie). Wondered whether the latter is related to Alexander McKenzie who married Mary, and whether the Donald in question is Mary’s brother?