'IN THIS HOUSE
THE "JUST WILLIAM" BOOKS
15th NOV 1890'
'Authoress'? I don't know when the sign was erected, but the expression must surely have been embarrassingly condescending even at the time.
I believe this plaque began life blue, but the sun has apparently blanched it. Richmal Crompton published about forty children's novels about William Brown, but although she published a similar number of adult books, it was the William books that sold more. She died in Chiselhurst in 1969.