Oh dear, Noreen - I've been going round in circles and had firmly got it into my head that Jane was Edward's first wife - think I am going quietly crazy. Sorry for the confusion.
I will post the details of what may be the whereabouts of Edward Armstrong in 1871 but the details are not at all clear. This guy is living in Shotton which puts him in the correct area to meet Jane Cranson
See what you think - the only problem is - I can't tell whether he is married or unmarried so I am going to post the original entry. The enumerator seems to use both 'U' and 'unmar' which doesn't help. Edward's birthplace is also given as Durham. I feel as though I am swimming in treacle with this one and would welcome another opinion
Address is School Row, Shotton Colliery, Shotton, Durham.
This is the only Edward Armstrong showing up in Shotton.
RG10/4972 Folio 54 Page 27.
The big problem with trying to find a possible first marriage is that we don't know where he was living between 1861 when he was boarding in Elswick, Northumberland and 1871. I do feel this may be your Edward in 1871 despite birthplace as he is a Colliery Engineman in 1881. There is no entry for a Edward Armstrong born Bywell Northumberland on the 1871.
Phew!
Tricia