William Ogilvie of Pittensear FRSE FSA(Scot) (1736–1819), known as the Rebel Professor and described by his biographer as the ''Euclid of Land law Reform', was a Scottish classicist, numismatist and author of an influential historic land reform treatise. Published in London in 1781, An Essay on the Right of Property in Land was issued anonymously, necessarily it seems in a revolutionary age.

St Machar's Cathedral is a Church of Scotland church in Aberdeen, Scotland, located to the north of the city centre, in the former burgh of Old Aberdeen. Technically, St Machar's is no longer a cathedral but rather a high kirk, as it has not been the seat of a bishop since 1690.