everybody was waving! and happy to get on the bus! but , at the end of the day, it was not the last bus. The bus is going to Streatham Hill Telford Avenue [i.e. Brixton Garage].
RM54 was going to Streatham Station- another 15 minutes ride, and it arrived there at 1410.
RM2217- the 'official last bus' arrived at Brixton Garage just before 1400, so the last bus was RM54, ha ha ha ha