This line was seen (by transposition) as early as Wright - Hunn, Arkansas, 1874, referred to in the November 1874 issue of the Dubuque Chess Journal as "An unsound variation of Jerome's double opening."
Sacchi64 also has a page on the Jerome Gambit, 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ as well as a file of 56 computer-vs-computer games in another thematic tournament (from 2009). I am playing through them, and am pleased to see that a few of the computers appear to have included the Jerome Gambit in their "books". As I noted in an earlier post
Given that the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) is not likely to be deemed "best" play for White by the analysis of any competent computer, any time the opening is played by a program, it is likely that the Jerome has been included in the opening "book".
I will share relevant games in future posts.