Claimed in a press interview to have been drinking in the Ten Bells with Mary Jane Kelly on the evening of 8th November 1888:
I have known Mary Jane Kelly for the last eighteen months, and we were always good friends. She used to tell me she came from Limerick. She was as nice a woman as one could find, and although she was an unfortunate, I don't think she went on the streets whilst she lived with Barnet. On Wednesday night I was in her lodgings with her, and the next evening I met her in the Ten Bells public house near Spitalfields Church. We were drinking together, and she went out about five minutes past seven o'clock. I never saw her after that.
It must be noted that Foster's claims conflict with evidence given by Maria Harvey about Kelly's movements that day.