Possible Hartley art per Jim Vandeboncoeur Jr. via the Timely-Atlas Facebook page, who explains:
"I believe that the Black Rider and horse are both by Hartley. I get a strong sense of his pose and his inks. The rest of the cover is what I tend to think of as the generic Brodsky-esque house cover style."
Previous indexer credited Syd Shores.
Coloring credit per Stan Goldberg.
Bernstein script per Martin O'Hearn: http://martinohearn.blogspot.com/2016/09/the-bernstein-black-rider.html
Pencils and inks credits from Dr. Michael J. Vassallo (October 1, 2006). Original indexer gave pencils credits to Syd Shores and inks credits tentatively to George Klein.
Jim Vadeboncoeur Jr. notes: "I disagree with Doc V here. I don't see Hartley pencils at all, but I'm not so firm on my ID of Sekowsky as to totally discount the Hartley entry. You might run this by Michael..."
Bernstein script per Martin O'Hearn: http://martinohearn.blogspot.com/2016/09/the-bernstein-black-rider.html
Fan page includes info on western lore (Corral Clues; Cowboy Curiosities) and letters from Norman May, Douglas Bales, Bill Cohen and Mary Litell.
Previous indexer credited Al Hartley pencils and inks.
First line added by Tom Lammers
For 1 Oct 1950. Stan Lee, Editor; Martin Goodman, Managing Editor; Robert
Solomon, Business Manager.
Previous indexers credited Syd Shores and/or Al Hartley on pencils and George Klein as possible inker.
Bernstein script per Martin O'Hearn: http://martinohearn.blogspot.com/2016/09/the-bernstein-black-rider.html
Brief historical account of the Battle of the Little Bighorn (Jun 1876)
Pencil and ink credits from Dr. Michael J. Vassallo (October 1, 2006) based on artist signature on the story. Original indexer gave pencil & ink credits George Tuska.
Art credits from Dr. Michael J. Vassallo, 10/1/2006 who notes: "That last story above looks like Sekowsky submerged under a heavy handed inker. The problem is that Sekowsky/Rule is always very noticeable as Sekowsky so I'm adding question marks to both artists."
Jim Vadeboncoeur, Jr Notes: "This is undoubtedly Sekowsky pencils. I'm doubtful about the Rule inks."
Bernstein script per Martin O'Hearn: http://martinohearn.blogspot.com/2016/09/the-bernstein-black-rider.html