Stafford Gambit books (perhaps within Petrov defense books?)

I am looking for more books about the Stafford Gambit. I know of two:

- "Stafford and Boden-Kieseritzky: A Gambit for Black, A Gambit for White" by Gary K. Gifford

- "The Stafford Gambit - A visual guide" - by myself

It seems there are no more dedicated Stafford Gambit books out there, but perhaps people know of Petrov Defense books that contain the Stafford Gambit within? Or other books perhaps? The books I have on the Petrov all go d6 after Nxe5, but I can imagine some also report the Stafford Gambit line of Nc3 instead of d6.

Looking to expand my knowledge on my favourite gambit

The vast majority of books will not cover it because it is unsound crap.

If they do, it is likely a side note or at most 1 game out of 50 to 100.

Closest thing I have seen is not the unsound Gambit itself, but rather another weird line that is also borderline unsound.  If memory serves me right, it is 1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4 4.Bd3 Nc6?! 5.Bxe4 d5 6.Be3 e4.

This variation you just outlined equalizes for black with relative ease. I am fairly certain this is not some unsound line, having seen Yu Yangyi play it a couple times during the Grand Prix (including a game against Anish Giri).

Another line you have to worry about which leads to a slight advantage for White (about half a pawn) is 5.Nxe5 Nxe5 6.dxe5 Nc5 7.Bc4.

And be prepared for the Halloween Gambit.

Not taking the Knight as in the line I gave in post 4?

In theory it is a bad opening, but in practice it actually works really well against human players when time is limited.

If you look at the most common responses to the gambit accepted, black wins in practice very often:

Only e5 is a common response that is in favour of white. F4 maybe, but it would be hard to call it common.

In high level games this year it worked out quite well for black, white never won, only one draw:

Apparently these high rated players decide to use it, so it can’t be all crap right?  It is actually quite difficult to play against unless you know the lines. But because it is uncommon, most people will not know the lines.

The Stafford Gambit isn't really something that's worth covering in books. It's a trick opening; if you're playing blitz and your opponent doesn't expect it, it can be a great weapon. Otherwise, it's unlikely to be succesful.