Pathe NewsreelsThis page links to the brilliant British Pathe site which holds a huge archive of the old newsreels shown in cinemas. Click Here takes you to the Newmarket set of clips. Admittedly most of the content relates to horse racing but scattered about but there are parts that show Newmarket.
As I find ones that actually detail of how Newmarket looked I'll add them here.
A very short clip of the 1952 Tour of Britain Cycling race down Newmarket High Street Click Here