The marriage cert. for 19 Oct 1912 has Ellen, age 42 yrs,a widow in 1898, 2 children living, one child dead. Tas. records have two children born and the death of one of them. There is a third child, alive at 1912. Do you think John William Humphrey and wife Ellen might have lived interstate for some time - I would try Victoria - and that is where the third child is born, and John William has died?.