Frederick was educated at Sherborne, and at Kingâ€™s College London, qualifying L.R.C.P., L.R.C.S., L.R.F.P.S. in 1898. He took up a commission at the rank of Lieutenant within the Medical Services on 14th November 1900 but served in the South African War as a Civil Surgeon from 1900 - 1902, being present in operations in Cape Colony, south of Orange River from July to 29th November 1900; in operations in the Transvaal from December 1900 to 31st May 1902; and in operations in Orange River Colony and Cape Colony 30th November 1900 to May 1901. For his services he received the Queenâ€™s South African Medal with 3 clasps and the Kingâ€™s South African Medal with 2 clasps. On 14th November 1903 he was granted the rank of Captain, and served in Gibraltar from 1903 to 1905. From 15th June 1908 to 31st October 1911 he was a Territorial Adjutant, and from 1911 to 1912 served in India until he was invalided. On 14th November 1912 he gained promotion to the rank of Major. From 4th February 1914 to 4th August 1914 he was reduced to half pay due to ill health, then at the outbreak of war assembled at Netley to form the unit No 2 hospital Ship - â€śSt Patrickâ€ť, becoming the Commanding Officer. He also appears to have served on the hospital ship â€śCarisbrook Castleâ€ť. He was awarded the Distinguished Service Medal in 1915 â€śFor services in connection with operations in the fieldâ€ť. In 1916 he went to Salonika, serving with the Serbian and British Armies in Macedonia up until 1917, and then again from 1918 to 1919. For a short while in August 1916 he had taken up duties with the Serbian Army as a liaison officer appointed to the French Army Headquarters. He also served with No 37 General Hospital, which has been loaned to the Serbian Army, sited at Verkekop, and with the 2/1st Northumbrian Field Ambulance, which arrived in Salonika in September 1916 and acted as a casualty clearing station. On 28th January 1918 he was awarded the Serbian Order of St Sava 4th class, and from 24 September to 26th December 1918 he acted under the rank of Lieutenant Colonel. Frederick retired from the Army on 14th November 1920, and ceased to be on the Roll of Officer from 5th January 1927.