Original: Acton Town, opened July 1, 1879 by the Metropolitan District Railway, later District line; first served by the Piccadilly line July 4, 1932.
Simplified: Acton Town, opened July 1, 1879 by the Metropolitan District Railway, later District Line; first served by the Piccadilly Line July 4, 1932. South Harrow, opened June 28, 1903 by the District; first served by the Piccadilly Line July 4, 1932; closed when re-located July 4, 1935; re-opened July 5, 1935.