He was s of Maj James William STIRLING HOME DRUMMOND MORAY 1900-68 (who he succ. as) head of that Scots gentry family of Abercairny and Jeanetta Ruth 1906-97 d of Lt-Col Lord George William MONTAGU DOUGLAS SCOTT OBE 1866-1947 (s of 6th Duke of BUCCLEUCH &c 1831-1914 who was 5xgt gs of the 1st & only Duke of MONMOUTH 1649-ex1685 who was s of King CHARLES II, etc) and Lady Elizabeth Emily MANNERS 1878-1924 d of 7th Duke of RUTLAND 1818-1906 and his 2nd w Janetta 1836-99 d of Thomas HUGHAN of Airds 1813-79 and Lady Louisa Georgiana BEAUCLERK 1806-53 d of 8th Duke of ST ALBANS 1766-1825 (2xgt gs of King CHARLES II, etc) and his 2nd w Maria Janetta NELTHORPE 1775-1822. He m 1st 1969 (div 1991) Angela Jane b 1946 d of Lt-Cdr Michael John BARING RN 1921-55 (3xgt gs of Sir Francis BARING 1st Bt 1740-1810 who was f of 1st Baron ASHBURTON 1774-1848, as well gf of 1st Baron NORTHBROOK 1796-1866), and had three daus (see B Northbrook colls in DPB & DPB online). He m 2nd 1991 Emma Moyra b 1952 d of Capt James Silvester RATTRAY 1919-99 sometime head of that Scots gentry family of Craighall Rattray and Christian Hilda 1924-63 d of Lt-Col Ivan Douglas GUTHRIE MC 1886-1964 sometime head of that Scots gentry family and Kathleen Mona 1886-1963 d of Col Hon George Hugh GOUGH CB 1852-1900 (s of 2nd Viscount GOUGH 1815-95) and Hilda Eve MOFFATT 1862-1947, and had a further dau.