The Cards’ Gerry Staley picks up a pair of wins in relief over the Cubs, winning 6 – 3 and 5 – 2 over Ralph Hamner and Johnny Schmitz. Staley pitches two innings in the opener and 2 2/3 innings in the nitecap. It is the second time in three weeks that the Cubs have lost a doubleheader to a single reliever.

On July 5, 1948 The Cards’ Gerry Staley picks up a pair of wins in relief over the Cubs, winning 6 – 3 and 5 – 2 over Ralph Hamner and Johnny Schmitz. Staley pitches two innings in the opener and 2 2/3 innings in the nitecap. It is the second time in three weeks that the Cubs have lost a doubleheader to a single reliever.

Source
Baseball Reference July 5