After the birth of three children, the family moved to Fort William, Ontario, where they lived until 1914, when Jessie returned to Birmingham with her children to visit the family they had left behind. War broke out during the visit, and William Henry Darby joined the Canadian Expeditionary Force to fight in World War 1. Following the death of William at Ypres, Jessie continued to live in Birmingham, until her death on 16 September 1944.
Jessie's children were:
William Henry Darby born Birmingham 1 May 1905 died Birmingham 28 May 1905
Jessie Violet Darby born Chicago 17 Feb 1908 died Morecambe 2 Feb 1988
Dorothy Nettie Darby born Chicago 17 Jan 1910 died Lancaster 8 Feb 1988
Norman James Darby born Chicago 9 Apr 1912 died Sunderland 9 May 1990