I am looking for list names of the executioners (hangman) for 1900s. ex relative was one and need info?

i have been told that my gt nans 2nd husband was the man who put the noose round the neck and hung people but i cant find info on this. i want to find any info on this man . his surname was brenchley and i believe he was also a policeman back in late 1890s or 1900s.