Harry Blanchard was a car dealer from Greenwich, Connecticut who raced as an amateur during the late 1950s. This pastime had largely been confined to SCCA events before his Lancia Appia Zagato finished the 1959 Sebring 12 Hours in a lowly 35th position.
Sebring’s 1959 season ended with the United States Grand Prix. The field was something of an eclectic mix with regulars joined by Rodger Ward’s Indianapolis roadster and Blanchard’s 1500cc Porsche 718 RSK sports car. The latter ran among the tail-enders to finish his only GP in seventh and last position. He received $500 from Martini & Rossi as the first American to finish.
1959 SCCA F Production Champion, Blanchard took the car to Buenos Aires for the opening round of the 1960 sports car season. The race was run on a combination of the permanent circuit and the roads outside. The American started in 18th position but he crashed with the similar car of Heini Walter as they re-entered the Autódromo on the opening lap. Blanchard’s car flipped and he was pronounced dead on arrival at the local hospital.