Schwarz was educated at St Paul's School in London, and matriculated to Christ's College, Cambridge in 1893.

It was on his return to England with the South African cricket team in 1904 that he made his mark, having learned from Bernard Bosanquet how to bowl the googly.

Schwarz made one first class century: 102 runs scored in a non-Test game against an England XI at Lord's in 1904.

Schwarz was a Major in the King's Royal Rifle Corps of the British Army and fought on the Western Front in World War I.

He survived the war, but died in the Spanish flu epidemic at Étaples in northern France just seven days after the Armistice had been signed.