It must be 1813 marriage as first child John was bap in the May of 1813. If Eleanor was born in the same year as she was baptised in 1797 she would only be 16 when she md & had her first child. That's possible as she had 2 chn then a gap of 8 years before having 5 more chn. My brain is letting me down at the moment as to the next move.