I am trying to make a connection between Isaac Geventer, who lived on S. 5th Street in Philadelphia at the time of the 1920 U.S. census, and a Louis Geventer, who lived on S. 4th Street in Philadelphia, married Taube, had a son Israel (possibly Edward) died July 16, 1950, and is buried at Mt. Lebanon cemetery in suburban Philadelphia. I suspect Isaac and Louis were brothers.