I have a library customer searching for a children’s book, but she doesn’t remember the title or plot. She thinks the author’s last name was Harper. It was a hardback picture book about a lighthouse keeper who was a shy man. The cover illustration was of a man in a long yellow rain slicker with a yellow rain hat over his face. It was published around 1948 or so. She said that her grandfather, Alonzo Washington, worked for a family called Harper who ran a publishing business in the Greater Philadelphia (Chester County) area, and one of the family members wrote this book for her when she was a child. She’s positive it was actually published, not a one-off. Her name is Marcilene Brown, if that will help at all. I haven’t been able to find any ties between her “Harper family” and the NYC Harper publishers. I hope you can help solve this mystery! Thank you very much for your help.