There are 5 books in the The Undertaker series. The newest book is Back from the Dead which came out in 1982.

2
Destined to Die

Book cover of Destined to Die
Mr Gershel, dirtied up and unshaven after early hours working his fields, he looked out of place on the swept stoop in the recently white-painted doorframe flanked by shiningly clean windows.
‘Mornin' to you, stranger,' he growled, unsmiling. ‘Joanne, what you doin' ridin' with a stranger?'
His Tennessee dialect was…

3
Funeral by the Sea

Book cover of Funeral by the Sea
Oceanville, California nestled by the wide blue waters of the Pacific but it was no vacation resort. More like a retirement home. Leastways, strangers who stumbled on it never came out again alive and mostly never had time to say hi to the folks before they were dead. Unless they…

4
Three Graves to a Showdown

Book cover of Three Graves to a Showdown
Gone forever, they said. And good riddance. The most cold-blooded killer that ever came out of the west, they said. Who wiped out an entire family. Just because one of them gave his whore of a wife what she had coming to her.
Well, that Barnaby Gold whom folks started…

5
Back from the Dead

Book cover of Back from the Dead
BACK FROM THE DEAD

‘When you and your sister found me half dead where the Mustang River flows into the Rio Grande, you knew I was a killer called The Undertaker.’
She made to interrupt, but a shake of his head was sufficient to make her hold her tongue.
‘I…