Hello and thanks,
I did not know of the 2nd daughter birth that's a new one, have found the 1881 details which puts both of their births as 1831 my apologies for stating 1819 for James birth 1831 would be correct.
Shame about the little by son born to the marriage (cannot find), would have thought they should be on 1841 census, James wife died suddenly on stage with him from a heart attack, and James little son was accidentally poisoned on stage, some poison in a bottle having been left there and the little lad drank it.
Kind regards,
Peter