Vincent studied at Guys Hospital and on 26th January 1895 the British Medical Journal noted that he had passed his examinations in Physics and Chemistry. On 13th July 1895 he passed in Physiology and Anatomy. He was appointed a ‘Surgeon on probation’ in the Royal Army Medical Corps in 1898. On 27th Janury 1899 he was Licensed by the GMC and seven months later was commissioned as a Lieutenant. By the end of the year Vincent had been posted to South Africa with the build-up of troops at the outbreak of the Second Boer War. He served in the Orange Free State and Cape Colony and was awarded the Queens and Kings medals with two clasps. He also served in India 1902-1903 and Mauritus 1910-1914, and during this time was promoted to Captain on 27th July 1902 and Major on 28th January 1911. On 14 September 1914, Vincent was granted T/Lieutenant Colonel and was given command of a Field Ambulance, he entered the war in France on 7th October 1914. He was promoted to Lieutenant Colonel on 1st March 1915. His DSO was awarded for services in the field. In 1917 Vincent left the Western Front for Salonika and served there up until 1919. After the war he went to India and served there from 1919 - 22 and again in 1924 - 1927. He was promoted to Colonel on 26th March 1925, and retired from the Army on 22nd October 1927. In retirement Vincent became a General Practitioner in Great Bardfield in rural North West Essex. His obituary notes that ‘his specialisation in diseases of women and children during his service in the RAMC proved beneficial in his own work and that of his colleagues’ and ‘He founded a branch of the British Legion in the village and became its first president.’ Whilst in Great Bardfield, he lived in and practised from Brook House. He was described as a stocky man, always to be seen in a trilby hat. He was one of the first car owner-drivers in the village and played golf every Thursday at Walton on the Naze. Vincent was the son of Surgeon-General Sir Thomas Crawford KCB, Director General of Army Medical Services in India who was born in Ireland and Mary Jane Crawford, daughter of General Clements Edwards CB, who had been born in India. He was the fifth of eleven children, ten of whom survived infancy. He was the husband of Ethal Mercy, daughter of Mr G Beck - married on 8th February 1903, who died at sea on 3rd January 1914; and Eileen Kathleen, daughter of the late Samuel Kidd Lackson and Mrs Jackson of Cara, Clones, Ireland - married on 17th March 1917. [Information sources: The Medical Officers in the British Army 1660 - 1960; The Distinguished Service Order 1886 - 1923; 1918 Medical Directory and family]