Losing to Cincinnati, 6 – 4, in the 8th inning, Louisville’s William “Farmer” Weaver hits a grand slam, and Danny Richardson follows with a solo shot – the last home run of his 11-year career – to spur a 9 – 7 win.

On May 16, 1894 — Losing to Cincinnati, 6 – 4, in the 8th inning, Louisville’s William “Farmer” Weaver hits a grand slam, and Danny Richardson follows with a solo shot – the last home run of his 11-year career – to spur a 9 – 7 win.

Source:
Baseball Reference May 16