There's nothing like revisiting past research to make you realise how much more information is so much more readily available online theses days.
This comment arises from my additions to WeRelate. In this case my direct paternal and maternal ancestral lines (no collaterals, they'll come later when I get round to loading all the rellise with their particular surname).
So far I've not found anyone on WeRelate researching any of my direct ancestors unfortunately, but no doubt in time someone will pop out of the woodwork. Perhaps they'll miraculously come up with my Archibald HENDERSON's ancestors - I live in hope!