Have you done their tree, 1891 census shows son William is at Henshires farm with wife, another son Andrew has wife Maria and son Harry. would suggest you "work the tree" through the census's up to 1911 and then try and find people on the 1939 register who were on the 1911 census as children. findmypast site for the 1939 register. Other sites are freecen and freebmd which should be useful.