This note sets out what is known about the life and coin collecting career of Jonathan Rashleigh (1820-1905), and draws attention to the fact that the evidence for his acquisitions of coins in the sale room provided by the 1909 Sotheby auction catalogue of the Rashleigh family collection can be supplemented by the presence of Rashleigh’s own name as a purchaser in marked copies of the catalogues of other coin auction sales dating from the late 1840s onwards.