Born in London, 12th January, 1908, was educated at Bedford 1919-1927. He received his engineering training with Sir Frederick Lobuitz & Co., Renfrew, and Colonel A.J.Barry, London. In 1939 he joined the Staff of Sir Alfred McAlpine & Son. He married 23rd April, 1938, at St. Peter ad Vincula, Wisborough Green, Sussex, Doris Sybil Leila, daughter and only child of Maurice Philip Hopkinson, sometime Lieutenant R.N., whose mother, Blanche Isabella Somerset, was a daughter of the Rev. Lord William George Somerset, a younger son of the 5th Duke of Beaufort and brother of Field Marshal Lord Raglan, Commander-in-Chief of the British Forces in the Crimea. They have a son Gordon Robert Lidderdale Forrest born at Ewell, Surrey, 13th March, 1943.

Reprinted from: Lidderdale, Robert Halliday, An Account of the Lowland Scots Family of Lidderdale, 1950 unpublished manuscript.