Lauder trained at Glasgow University alongside Handyside Edgar becoming a lifelong friend of his brother Alexander Edgar through this link.
[4] Dr Colin Lauder was the surgeon to the Scottish philosopher David Hume (as recorded by The Private Papers of James Boswell 1776).
His Edinburgh home stood on Carrubbers Close off the Royal Mile.
[5] A Sasine registered on 12 August 1785 records that George, Rosina, John and Lucinda Johnstone Lauder, children of Colin Lauder, surgeon, Edinburgh, were seised in part of a tenement of land in George Street, Edinburgh, on Disposition by Andrew Neil, mason, Edinburgh.
Another Sasine, registered 8 July 1793, mentions "Colin Lauder late surgeon in Edinburgh, now at Fala House, Midlothian."