By 19 October 1906
GS published through J. M. Dent
her first book of verse for children, The Wise Book
, with illustrations by her sister Millicent Sowerby
GS wrote her last play, entitled "Direct Action". It has not been (in 2010) staged or published. Her biographer, Patricia Riley, discovered the manuscript in a hatbox of memorabilia at the apartment of Sowerby's daughter
30 June 1970
GS died in London
at the age of ninety-three, having outlived all her siblings. There were no obituaries.