I happened upon this excellent feature on the British Geological Survey site which allows you to examine local geology at a scale of either 1:625 000 or 1:50 000, which is excellent! The bedrock or surface geology, or both, can be examined and explored at leisure…
Norman MacCaig, poet, was the son of Robert MacCaig and ‘Joan’ MacLeod who were wed in Edinburgh in 1906, his mother having been born and raised in the island of Scalpaigh na Hearadh, a few hundred metres off the coast of Harris.
‘Joan’, (whose name was given as Johanna when her birth on 28 December 1877 in Scalpay was registered) was the daughter of William MacLeod and Effie Martin, themselves married in Tarbert on 15 March 1864.
William, 29, was a fisherman, his parents being a crofter John MacLeod and his wife Christina MacLeod.
Effie, 20, was a domestic servant and the daughter of another crofter, Roderick Martin and his wife Flora MacLeod.
Johanna MacLeod had a sister, Julia, who was 74 when she died on 25 September 1939 at Boat Point, Scalpay. She is better known to us as ‘Aunt Julia’ in Norman MacCaig’s poem of that name: http://www.bbc.co.uk/programmes/p00c4kkj
Incidentally, Norman MacCaig’s great grandfather, Roderick Martin was born in Drinishader, Harris but whether there is any connection with my own Martin ancestry from nearby Direcleit remains unknown, but it is a possibility!