Also, it's funny how we sometimes perceive things. Gerringer was actually 5 years younger than George
I think that the idea to have people resemble other people was decided when they showed the past. Otherwise they would have had Barnabas commenting to Willie that Liz looked like his Mother, etc.
... Carolyn, Roger and Liz are admiring the work that Barnabas has done so far. He offers them claret cup, then nearly slips and says Liz looks just like his mother, then almost slips again and refers to Roger as his father. ...
I'd say that Barnabas, full knowing Angelique was the cause of Josette falling in love with Jeremiah, and furthermore considering the great sadness Barnabas felt in killing Jeremiah, you'd think then Barmabas would have had sympathy towards Burke instead of hostility