That is his son he brings in...William E. Butterworth IV...
Hence, the W.E.B.
Doesn’t have his father’s touch. And the last book of one of the series - my brain freezes - was SO bad that it’s in my throw out pile, and that’s from a book collector with a 42 foot long hallway of bookshelves, a library and about 10 scattered bookcases throughout the house. Though my terror is that I’ll rebuy it by mistake.