Dr. Hans Schlemmer was in the 1950's one of the strongest youth players in Bavaria. He quit chess very early and resumed chess when he was about 50 years old. He reached ELO of 2325 in 1997, when he was already 62 years old
He was a tactical player who played the Kings Gambit himself (line Bc4). with black he played regular the Albin Counter Gambit and the  Jaenisch Gambit.  Only against the Sicilian he played the rare 2. c4.

corres M1449E  Holzvoigh - Schlemmer

1.e4 e5 2. f4 Bc5 3. Nf3 d5 4.Nxe5 dxe4
5.Qh5 Be6 6 Nf7 Bf2+ 7.Kxf2  Bxf7 8.Qe5 Ne7
9. Qxg7 Rg8 10. Qe5 Nd7 11. Qxe4 Nf6 12.Qa4+ ?? c6 and Black wins in move 22

corres 23.DFM/7 Walter - Schlemmer

1.e4 e5 2. f4 Bc5 3. Nf3 d5 4.Nxe5 dxe4
5.Qh5 Be6 6 Nf7 Bf2+ 7.Kxf2 Qd4? 8. Kg3? Bf7
9. Qe5+ Qxe5 10.fxe5 Nc6 11. d3 Nxe5 12. d4? Nc6
draw in move 36

corres 25. DFM/4 Metz- Schlemmer
 
1.e4 e5 2. f4 Bc5 3. Nf3 d5 4.Nxe5 dxe4
5.Qh5 Be6 6 Nxf7 Bf2+ 7.Kxf2 Bxf7 8. Qe5+ Ne7
9. c3? Nd7 10. Qxe4 Bd5 11. Qc2? 0-0 12. d4 Ng6
13. Kg1 Nxf4 14. Bxf4 Rxf4 15. Na3?  Qf6 and black wins in move 25

Have you already made up your mind about 3.Nc3 ? That is what I intended to play as White.

6.Qh5 Nxe5 7.Qxe5 Qe7 and the exchange of queens seems to favour Black, who has no problems finding good squares for his/her pieces. But 8.Qxg7 Qh4+ 9.g3 Qf6 10.Bxf7+ Ke7 seems to be good for White indeed. If yes, all KGeers will be gratefull.