An enjoyable episode and I thought Nigel Havers came over as genuinely interested in his ancestors' stories. Loved that he was looking for 'not posh' ancestors, but ended up finding a 'cad'!
I agree that he was a bit romantic about David caring about little Eleanor - I don't know too much about affiliation orders etc, but if Ann had to go to the Petty Sessions, he presumably wasn't too caring!
The one thing that slightly irritated me was when he kept asking 'what's happened to Elizabeth junior'. Uncle Tony's family tree had already established her marriage in (I think) 1862. A fascinating story about the rise and fall of the Hamblions though!