He was born in 1860, the first son of Francis Barratt of St Austell, Cornwall and educated at Trinity Hall, Cambridge (MA, LLB).
He married in 1884, Frances Layland (Lady of Grace of the Order of St John of Jerusalem, CBE 1920) of Stonehouse, Wallasey.
[1] He contested the Torquay Division of Devon at the General Election of 1895, for the Liberal Party, but was unable to take the seat from the Conservative.
[1] He contested Torquay for the Liberals again at the 1900 General Election and this time was successful, gaining the seat from the Conservative.
Barrett was chosen as Liberal candidate to replace him and due to the wartime electoral truce, did not face a Unionist opponent and was elected.