Fairbairn's Crests identifies the crest as belonging to James Gray-Farquhar (ca. 1778-1828), but he has no association with Somerville House. There is a Somerville House, also known as the Drum, near Edinburgh, seat of the Lairds of Somerville, and another in Navan, Meath, Ireland, the seat of the Right Hon. Lord Athlumney. None of these seems likely.