James,senr (will 1809)is prob s/o John Christian (will 1804) + Jane Quay(will 1783)
all summarised on MNB
John was probably a tailor (noted against bapt of son Thos)
Jane is noted of Dawby [= dalby] in her will
I think John married Jane kelly als caine after death of Jane quay - there would appear to be a child in Douglas