Hi,The only thing I ever read about that child, other than in MA, was in an interview with Charlie from the 1970s. He said that the little boy was never given the Chaplin name. He does not mention having any further contact with him.
In his autobiography he mentioned a son of his father and Louise, who became an orphan around the age of 10. Do you know about the life of that child afterwards, or if Chaplin ever got in touch with him or gave him any support?