Background
Yvonne Hélène Mayer was born on 17 April 1903 in London, England, United Kingdom, into a Jewish immigrant family, daughter of Max Alfred Mayer (1871–1948) and his wife Clarisse Fanny Bielefeld (1878–1960).
Yvonne Kapp with her daughter Janna, 1970.
Yvonne Hélène Mayer was born on 17 April 1903 in London, England, United Kingdom, into a Jewish immigrant family, daughter of Max Alfred Mayer (1871–1948) and his wife Clarisse Fanny Bielefeld (1878–1960).
Yvonne Mayer started work with a brief stint on the Evening Standard and moved on to the Sunday Times.
In 1938 she was co-author, with Margaret Mynatt, of British Policy and the Refugees, not published until 1968. From 1941 to 1947 she worked for the Amalgamated Engineering Union as a research officer. Subsequently, Yvonne worked for the Medical Research Council, and later as a translator, and writing her magnum opus, a life of Eleanor Marx.
She died on 22 June 1999.
She joined the Communist Party of Great Britain and was its supporter.
Yvonne was married to Edmund Kapp from 1922-30.