Would someone with access to MM please check the marriage of James Hales and Mary Fairless 4 Jan 1842 Braddan?

I'm trying to help a woman who contacted me and is stuck on their parents.

From the 1851 Onchan census, it looks like both James and Mary were from England--James was 15 yrs older and looks like 2 oldest children must have been from a previous marriage
The children apparently from James/Mary are listed as being b in Douglas but there is no IGI entry for any of them.

The 1842 marriage does appear on the IGI and is an extracted entry.

Thanks,
Donna