Jerome Gambit Positional Play

The first thing that comes to mind at the mention of the Jerome Gambit is not "positional play". Yet, in the following game Bill Wall works to delay the development of Black's light-squared Bishop (a state of affairs that is often deadly for the second player) even at the cost of trading Queens. 

Wall, Bill- NN
lichess.org, 2016

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.d4 Bxd4 7.Qxd4
Qf6 

With both defense and a trap in mind.

8.Qc5 Qd6 9.Qxd6 

Black's Bishop will not be travelling on the c8-h3 diagonal.

For 9.Qc3 see Wall, B - Guest3967134, PlayChess.com, 2015. Also 8.Qe3 as in Wall,B - Tsyalex, PlayChess.com, 2015 (1-0, 20); and 8.Qd1 as seen in an unfinished correspondence game Jerome,A - Norton, D.P., 1876, and the later Jerome,A - Jaeger,D, correspondence, 1879, (1-0, 35).

Don't overlook "Why Did He Play That Move?"

9...cxd6 10.Bf4

The alternative, 10.O-O, was seen in Wall,B - berserkergang, FICS, 2011, (1-0, 21).

10...Nf6 11.Nc3 b6 12.O-O-O Ke6 13.Nb5 

13...Nxe4

Black protects the pawn at d6, but not the space at c7. Perhaps he has his eyes on his own fork at f2.

14.Nc7+ Ke7 15.Nxa8 Nxf2 16.Bg5+ Kf7

Not as good is 16...Ke6, i.e. 17.Rhf1 Ned3+ (not 17...Nxd1 18.Nc7#) 18.cxd3 Nxd1 19.Nc7+ Ke5 20.Kxd1 Bb7. Black's Bishop is finally developed, but he is worse.

Black continues, but his oversight on move 21 seals the game.

17.Rhf1 Kg6 18.Rxf2 Kxg5 19.Nc7 Bb7 20.Nb5 a6 21.Nxd6
Be4 22.Nxe4+ Black resigned