Most American cars before 1940 had front doors hinged at the front and rear doors hinged at the back. Between 1932 and 1935 nearly everyone tried all suicide doors, at least for one year. Hudson’s door patterns were far more varied, with a stronger tendency for suicide front doors. In 1929 every possible combination was represented:
They finally settled into the usual homicide front / suicide rear pattern in 1936.
Polistra's Mill 