As repoorted in the Sporting Life, the Mitcham Cricket Club president’s wife performed the opening ceremony.

MILITARY CRICKET.
MITCHAM v. HON. ARTILLERY CO.
A NEW PAVILION OPENED.

Since the earliest days of Surrey cricket, Mitcham Green, the scene of yesterday’s match, has been a noted locale. Additional interest was attached to the present fixture, as it was set apart for the opening of the new and commodious pavilion. The ceremony was performed by Mrs. G. J. Poston, wife of the president, in an appropriate speech.

The match, which provided some keen play, resulted in a victory for the home side, eight minutes before the time, by 53 runs. For the winners, W. Hussey was top scorer with 68, which included eleven 4’s: while for the Volunteers W. Stopper had 58, consisting of ten 4’s, and J.D. Gillespie 42 not out. The last-named, who hit six 4’s, made 16 in one over from Hussey. Major Triffey has sufficiently recovered from the injuries sustained in the recent South African campaign to renew association with the summer game. It will remembered this gallant soldier was invalided home after being severely wounded.

Source: Sporting Life – Thursday 19 May 1904 from the British Newspaper Archive (subscription required)