Bruce appears to have been a Preacher of his Majesty's Chapel, Somerset-House. See 'The happiness of man the glory of God. A sermon preached before the Honourable Trustees for establishing the colony of Georgia in America, and the Associates of the late Rev. Dr. Bray; at their Anniversary Meeting, March 15, 1743, in the Parish Church of St. Margaret, Westminster. By Lewis Bruce, A. M. Preacher of his Majesty's Chapel, Somerset-House.' Information supplied by Anna James on 10/11/2011