April 6, 1884 was a busy baseball day in St. Louis.
Besides the Maroons' first game, the Browns played their reserve club at Sportsman's Park, the Western Brass Manufacturing Company club played an amateur club from East St. Louis, the East St. Louis Club played the Belleville Standards at National Park in East St. Louis, the Papins played the Eclipse, the Ely-Walker's Packing-room nine played the Ely-Walker's Porters, the Kemper Grocery nine played the Southerns, the Prickly Ash played the St. Gothards, the Jolly Knights played the Martin Neiser "Ice-water nine," the CBC club played a club made up of college students at the Compton Avenue Grounds, and the Western Railroad nine played the Missouri Pacific Railroad nine, also at Compton Avenue.
The Globe-Democrat noted that the Browns had 5,000 people at their game and the doubleheader at the Compton Avenue Grounds drew 500 fans. They also mentioned, of course, that the Maroons had around 10,000 people at the Union Grounds. The Cleveland Herald, on April 9, stated that "[in] St. Louis last Sunday 20,000 people took part in base ball either as players or spectators of the many games played on that day." They also noted the attendance at the Maroons' game, which must have truly galled them.
The 1884 St. Louis baseball season was in full swing.