09 Dec 1878 - Birth of his father Peter Petersen at Germany 

16 Oct 1883 - Birth of his mother Katherine Rasmussen at Denmark 

11 Oct 1955 - Death of his father Peter Petersen at Estherville, Emmet County, Iowa, USA 

Oct 1955 - Burial of his father Peter Petersen at Marathon, Buena Vista County, Iowa, USA 

03 Aug 1957 - Death of his mother Katherine Rasmussen at Seneca, Kossuth County, Iowa, USA 

Aug 1957 - Burial of his mother Katherine Rasmussen at Marathon, Buena Vista County, Iowa, USA