It is beacuse his actions toward the beast (hound) makes Beryl to suspect Stapleton
Beryl Stapleton
In the book "The Hound of the Baskervilles" by Sir Arthur Conan Doyle, Jack Stapleton is actually Miss Beryl Stapleton's husband. Allegedly though, she is Jack's sister.
Beryl Stapleton
No!! Sherlock Holmes had nothing to do with the romance in the Hound. It was only between Sir Henry and Beryl Stapleton.
She told them of an old tin mine on an island in the heart of the Mire where he had made preparations so that he might have a refuge.
The Baskerville family tree in the Hound of the Baskervilles include Jack Stapleton, son of Rodger Baskerville II, Hugo Baskerville, Henry Baskerville, and Charles Baskerville. Also in the family tree are Beryl Stapleton, wife of Jack Stapleton.
Christopher Stapleton's birth name is Christopher James Stapleton.
Nicola Stapleton's birth name is Nicola Kathleen Stapleton.
Ben Stapleton is 181 cm.
Christopher Stapleton is 6' 1".
Darnell Stapleton is 6' 3".
Katharine Stapleton is 5' 3".