Regarding the ship's name, I had a quick dig around on the internet, the name of the ship appears to be unknown, but I can narrow it down to one of four. [1] gives the ship as one of: 'the Cinderella', 'the Sovereign', or 'the Vixen'. jessicafischerqueen has him commanding 'the Meteor' in 1925 in the discussion at the bottom of [2].
Thanks for the link.
Someone has certainly been doing some digging into the past.
The 'Meteor' would have been a great name for the gambit although
it appears all Evans was doing was transporting a ship from A to B.
The best bet looks like it was the 'Sovereign' as we have it docking at
Milford Haven in 1825 in the Postal Records and it was a post office ship
that Evans captained.
The Sovereign Gambit?
There should be a Cinderalla Opening or maybe we should start calling
any pawn that reaches the 7th a Cinderalla pawn.
[White "Levitsky"] [Black "Marshall"] 1. d4 e6 2. e4 d5 3. Nc3 c5 4. Nf3 Nc6 5. exd5 exd5 6. Be2 Nf6 7. 0-0 Be7 {Levitsky's idea is to make the black bishop move again} 8. Bg5 0-0 9. dxc5 Be6 10. Nd4 Bxc5 11. Nxe6 fxe6 12. Bg4 Qd6 13. Bh3 Rae8 14. Qd2 Bb4 15. Bxf6 Rxf6 16. Rad1 Qc5 17. Qe2 Bxc3 18. bxc3 Qxc3 19. Rxd5 Nd4 20. Qh5 Ref8 {Marshall doubles his rooks on the f-file, and, because he has removed the pin on his pawn, threatens 21...exd5. He also threatens 21...Rxf2 because 22.Rxf2?? would allow 22...Qe1+ 23.Rf1 Qxf1#.} 21. Re5
21... Rh6 22. Qg5?? {The placement of the queen means White's g2-pawn is overloaded with preventing the knight fork 22...Nf3+ and defending the bishop, so Marshall wins a piece with his next move.} Rxh3! 23. Rc5 Qg3!!