Elsie Gratwick was a New South Wales school teacher. During World War I, several of her patriotic poems appeared in the Australian newspapers. In 1916 she married Albert Henry Riddell, a school teacher and former professional cyclist. Riddell enlisted in the AIF and left Australia for Europe soon after their marriage. He died of wounds in 1918. Elsie remarried in 1920.
Further biographical information remains to be established.
