A bit of a catch-up and something that got me thinking...
This thread began about a mystery match and then introduced the question of paternity relating to my great grandfather. It's likely that the two are connected, at least the answer to the mystery match will probably be found in the family of the other. They are that kind of family - beer, fighting and women seemed to be their favourite thing.
I've poured over the matches trying to make connections and so far I've failed. Tree holders with 'my' family in them have tended to be unrelated themselves so no use for DNA testing. Those that are most likely to hold the key aren't responding so I'm stumped. For now - I know it's a waiting game. However, while sorting through other stuff I came across the DNA match that cropped up last year which seemed to answer the parentage question. Thrulines suggested a sub10cM match with someone who shared a 3xgreatgrandmother on that particular branch. I checked the matches links and it ticked the boxes. I was delighted. DNA proof to connect my greatgrandfather with paternal ancestors. Yay!
However, recently I found I'd made an error in attributing that shared individual to my tree. I've checked again and I was definitely wrong. The DNA match doesn't stand, the proof isn't proof at all. My mistake. So I altered my Ancestry tree accordingly. Interestingly Thrulines hasn't updated itself- did I think it would? Probably not. As a slow adopter of this side of FH research I've tended to rely on the matching of trees to confirm connections - clearly that's not enough proof when a particular question needs answering. It looks like I need to tackle the science too, assuming I can find someone willing to share their test results, of course.