The winner was the German Master Wilhelm Orbach (1894-1944). You won’t find much information on him, but Chessmetrics estimates hus best rating to have been 2548 back on 1921, placing him at #41 in the world. By comparison, a couple of better known players with similar ratings were Fritz Saemisch and Sir George Thomas. He was murdered in the Auschwitz concentration camp.
His opponent was Walther Holzhausen (1876-1935) who was known as a problem composer who published a couple of books on problems, as well as a player. 
The chart giving the Accuracy and Blunder Categories as determined by Fritz 19’s Tactical Analysis gives some interesting insight as to how the game went. Clearly, it was not especially well played, but white’s final attack is entertaining. Unfortunately I have not been able to discover what determines how a move is categorized. Anybody have any thoughts?
[Event "DSB Kongress, Duisberg"]
[Site ""]
[Date "1929.??.??"]
[Round "?"]
[White "Wilhelm Orbach"]
[Black "Walther von Holzhausen"]
[Result "1-0"]
[ECO "D15"]
[Annotator "Stockfish"]
[PlyCount "53"]
[EventDate "1929.??.??"]
{D15: Slav Defense} 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 dxc4 5. e4 b5 6. Qc2 e6
7. Be3 {This B is normally developed to f4 or g5, but the text is hardly bad.
Another popular move is 7.a4 to challenge black on the Q-side.} Bb4 8. Be2 {
Black almost always waits until white plays a2 before making this exchange.}
Bxc3+ 9. bxc3 Nbd7 10. Bf4 {Moving the B again is a waste of toime. Simply 10.
O-O was better.} Bb7 11. O-O c5 {This gives black excellent play.} 12. e5 {
This move is suspect; white needs tp keep things flexible in the center.} (12.
Qb2 {Attacking the b-Pawn. Black emerges with a slight advantage after} Nxe4
13. Bxc4 bxc4 14. Qxb7 Nxc3 15. Rfe1 O-O {Note that neother R can threaten the
N.} 16. Bd6 Qc8 17. Qb2 Nd5 18. Bxf8 c3 19. Qb5 a6 20. Qc4 Qxf8 {Black has
plenty of play for the exchange.}) 12... Nd5 13. Bg3 O-O 14. Bh4 f6 {This
creates an almost imperceptible weakness in the K's position. The active 14...
Qb6 was in order.} 15. Rab1 {This is another small inaccuracy.} (15. exf6 N7xf6
(15... gxf6 16. Rfb1 Bc6 17. a4 {and white has equalized.}) 16. Bg3 {Prevents .
..Nf4} Rc8 17. a4 b4 18. Bxc4 bxc3 19. Rfd1 Qe7 {with the more active position,
but white's position remains quite solid.}) 15... Bc6 {He could take advantage
of white's omission last move with 15.g4 because white is in no position to
take advantage of the weakness that ...g4 creates.} (15... g5 16. Bg3 f5 {
leaves whiyr at a loss for a really good continuation.}) 16. dxc5 Nxc5 17. exf6
gxf6 18. Nd4 Be8 {The threat is ...Bg6.} 19. Qd2 Ne4 {A piece with a promising
future, but things will go wrong.} 20. Qh6 {This move is not as aggressive as
it looks, but practically speaking it's better than the defensive 20.Qe1
because it baits a trap which black falls for.} (20. Qe1 Nexc3 (20... Ndxc3 21.
Nxe6 {equalizes}) 21. Nxe6 {equals}) 20... Nexc3 {This is the wrong N because
it allows white's next move.} 21. Bg4 {[%mdl 640] White has a promising
counterattack.} Nc7 {[%mdl 8192] This is a game losing blunder!} (21... Nxb1 {
[%emt 0:00:04] allows a mate in} 22. Bxe6+ Rf7 23. Nf5 Kh8 24. Bxf7 Bxf7 25.
Qg7#) (21... Bg6 {is correct as it avoids the mate.} 22. Rbe1 Qb6 23. Bxe6+ Kh8
24. Ne2 Nxe2+ 25. Rxe2 {In Shootouts from this position white scored +1 -0 =4})
22. Nxe6 Qe7 23. Nxc7 {Much stronger than taking the R.} (23. Nxf8 Qxf8 24. Qf4
(24. Qxf8+ Kxf8 {with equal chances.} 25. Rbc1) 24... Nxb1 25. Qxc7 {Even here
though white should win.}) 23... Bg6 (23... Qxc7 24. Be6+ Bf7 25. Bxf6 Bxe6 26.
Qg5+ Kf7 27. Qg7+ Ke8 28. Qxc7 Rxf6 29. Qc6+ {and wins}) 24. Nxa8 Nxb1 25. Nc7
{[%mdl 512]} Qxc7 26. Be6+ Rf7 (26... Bf7 {just delays the mate.} 27. Bxf6 Bxe6
28. Qg5+ Kf7 29. Qg7+ Ke8 30. Qxc7 Bd7 31. Re1+ Kf7 32. Qxd7+ Kxf6 33. Re6+ Kg5
34. Qg7+ Kf4 35. g3+ Kf5 36. Re5#) 27. Bxf6 {Black resigned. It's mate in 2}
1-0
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