No Dates
Possibly the merchant of Calcutta of the same name, but not further traced by LBS to date.
https://books.google.co.uk/books?id=TxcYAAAAYAAJ&pg=RA1-PA359&lpg=RA1-PA359&dq=%22thomas+francis%22+%22calcutta%22&source=bl&ots=nLYONJAGEA&sig=ACfU3U0fyCm4_SyV_h8BU42KQTRkfTAHIw&hl=en&sa=X&ved=2ahUKEwixvIKB9-fpAhWUa8AKHe0NBWsQ6AEwAXoECAsQAQ#v=onepage&q=%22thomas%20francis%22%20%22calcutta%22&f=false [accessed 04/06/2020].