Professor of Scottish History and Literature University of Oxford. In 1929, Rait was appointed Principal of the University. He remained in post as professor for a year, publishing a "History of the Union Bank of Scotland" in 1930, but resigned later that year, succeeded by John Duncan Mackie, previously Professor of Modern History at Bedford College (predecessor institution of Royal Holloway), who had initiated the teaching of Scottish History at the University of St Andrews on being appointed a lecturer there at only twenty-two years old. His publications whilst in the chair included "Andrew Lang and the House of Stuart" (1935) and "The Earlier Tudors 1485-1558"
Royal Naval House was instrumental in the establishment of the Church of England Mission to Seamen in 1881, and his home a 3 Princes Street, Dawes Point was its headquarters. In 1885 he moved to larger premises at 9 Princes Street, renamed Trafalgar House, where they were also able to offer some residential accommodation. At the end of 1886, at its Committee's request, he agreed to also act as Superintendent of Goodenough Royal Naval House at 39 Princes Street, which he ran in conjunction with Trafalgar House. Despite this both places could not cope with the demand for accommodation and a public subscription