Ivy Walker, full name Ivy Constance Graves Walker, was the first wife of Arthur Ransome and the mother of their child Tabitha Ransome.
She was born in 1882 to George Graves Walker and his wife Sophie Castle Walker neé Smith.
Ivy married Arthur on 13 May 1909. Her father was then a solicitor, and her parents were living in Bournemouth. They had a daughter Tabitha Lewis, born in Bournemouth on 9 May 1910.
They divorced in 1924. Ivy died in 1939 in Devon, calling herself Ivy Constance Ransome. .