Jamajo, had a quick look at some Electoral Registers for James Dance checked 1919/20,1926,1934.All had James and Jane Living at 47 Stafford Road no mention of any other Dance family members.The only other people living with the Dance`s were in 1934 Joseph Edward Groucott and Lilian Groucott.
I believe Jane may have been living there on her own in 1946,but can`t find where I`ve written it down at the moment.
Hope this might be of some help.
Steve