DOES anyone know anything about the 2 and 20 groups of bus routes?

I know, way back in time, that Kidlington was served by the 20 group of routes, which then became the 2 group, as they are today.

I know that the 21/21A ran from the city centre (Cornmarket) via Summertown (Banbury Rd) to Kidlington (Oxford Rd) then the 21 went via Evans Lane, The Moors and High St whilst the 21A via Grovelands, Lyne Mead and Langford Lane.

There was also a 20 service to and from Kidlington and I’d like to ask if anyone knows what route it did in Kidlington, and if it went further than the city centre?

Additionally, I’d like to ask when the 2 group was extended to Kidlington.

I know in the late 1950s and early 1960s the 2 went from Risinghurst and Sandhills to Cutteslowe.

ALEXANDER R P EDWARDS
Temple Village
Midlothian