So when did Mrs Butterworth take up residence at
Back in the Village, No.6 soon discovers that Mrs. Butterworth is No.2, and keeping her promise, she baked him a birthday cake, which has six candles upon it. Whether Mrs Butterworth was in the Village at the outset of the episode Many Happy Returns cannot be reckoned. She might have become involved with the plan, as we saw she was, but didn't take up her role as the new No.2 until the Prisoner was safely on his way back to the Village, having arrived there herself some little time before him.
Actually, and this would depend upon just when Mrs Butterworth moved into 1 Buckingham Place, that it was lucky that she or her maid did not encounter Janet Portland of Do Not Forsake Me Oh My Darling. Because in this episode Janet Portland was walking along
And afterwards what? Mrs Butterworth and her house maid Martha depart
I'll be seeing you.