Born in 1903 in the east end of London, Beatty she joined the Communist Party in 1920.
Secretary of the Stepney branch she was active in the local Trades Council.
Working full time at King Street from 1922, she was arrested during the 1920s.
She was noted for her vigilance over admission to the Party centre, at a time when the Party had to be very security conscious.
Beatty Marx worked for the Party until her retirement and was active in the Muswell Hill branch until her death in 1985.
Source: Morning Star 5th August 1985