Margaret Cole
Born Margaret Isabel Postgate. An English socialist politician and author who sometimes collaborated with her husband <a href=https://openlibrary.org/authors/OL18544A/>G. D. H. Cole</a>. <a href=http://openlibrary.org/authors/OL6170072A>Raymond Postgate</a> (<a href=http://en.wikipedia.org/wiki/Margaret_Cole>Wikipedia</a>) was her brother.
Works (29)

The Anatomy of murder

Death in the Quarry

End of an Ancient Mariner

The Man From the River

Dead Man's Watch

The brothers Sackville

The Blatchington Tangle

Superintendent Wilson's holiday

The Murder at Crome House

The Great Southern mystery
1972

Counterpoint murder

The murder at the munition works

Our Soviet ally

Knife in the dark

The Brooklyn murders
1978

Last will and testament

The story of Fabian socialism

The death of a millionaire
1950

The Berkshire mystery

The missing aunt

Poison in the garden suburb

The Bolo book

Servant of the country

A guide to modern politics

Makers of the labour movement
1948

Never Too Old for God

The Webbs and their work

Books and the people

Beatrice Webb
1945