The Athletics hold a special day to benefit the widow and children of Doc Powers, who died a year earlier from an intestinal condition while still active as a player. 12,000 persons come to Shibe Park to witness skills competitions followed by a friendly exhibition game between the A’s and stars from other American League teams, raising $8,000 for the cause.

This Day In Baseball

On June 30, 1910 The Athletics hold a special day to benefit the widow and children of Doc Powers, who died a year earlier from an intestinal condition while still active as a player. 12,000 persons come to Shibe Park to witness skills competitions followed by a friendly exhibition game between the A’s and stars from other American League teams, raising $8,000 for the cause.

Source
Baseball Reference June 30