From the Hendon & Finchley Times, 4 October 1912 :

Hampstead Town visited Maidenhead on Saturday, and as a result were dismissed from the English Cup by two goals to one. The game was a typical cup tie, and very little good football was seen. A shifty wind made the ball difficult to control. Maidenhead had slightly the better of the game in the first half, but the Town scored first, through Sumner, after ten minutes' play. Maidenhead equalising just before the interval. Hampstead were the more dangerous side in the second half, and Pike was noticeable for several good attempts to score. The game was nearing an end when a high dropping centre by Maidenhead’s inside-right was carried by the wind into goal, just under the crossbar, the swerve deceiving Matthews. Hampstead must be considered unlucky losers.
_________________________________________________________________________________
From The Sportsman, 1 October 1912 (including teams) :

At Maidenhead. The game was not productive of many incidents. The home team played well at the commencement, and had the forwards been as smart in front of goal as they were in midfield they should have had a couple of goals. Hampstead were the first to score, Sumner taking the ball past the defence and scoring just inside the post. They did not hold the lead long; for Fountain equalised with a header from a centre by Cripps. In the second half Maidenhead were the more forceful side. Fifteen minutes from the end Cook scored the winning goal for Maidenhead with a splendid shot. Result: Maindenhead, 2 goals; Hampstead Town 1.