Pam - always a problem getting details of recent people!However - unless he's very precocious and with a bit of luck he should appear in the 1881 census - certainly Julia Mary does - a Cheetham lass (like my wife!) born in 1866.
The trouble is, there are 104 Thomas AINSLEY variants in the index - and you need at least some guesstimate as to his age.
Two possibilities present themselves: the easiest will be to get Thomas's death certificate, which *should* show his age (or an approximation thereto) which may well allow you an entry into the 1881, otherwise work back through the GRO indexes and see if you can find the birth of the eldest child, and then search for the marriage - remembering that "short" pregnancies were common in those days!
If you get some joy from these approaces, please contact me direct - there's a high probability I'll be able to slot the resulting data into one of the many dozens of tree I have extending to around that period - even if you dont get results that way I will in all probability be able to help further anyway
regards Hugh ainsley - the AINSLEY one name study.