When Peter Calvin Wasson was born on 8 March 1849, in Darke, Ohio, United States, his father, James Morrow Wasson, was 38 and his mother, Christina Hoover, was 32. He married Henrietta Shockney on 23 December 1880, in Randolph, Indiana, United States. They were the parents of at least 1 son and 5 daughters. He lived in Washington Township, Darke, Ohio, United States in 1880 and Rensselaer, Jasper, Indiana, United States in 1900. He died on 10 May 1907, in Winchester, Randolph, Indiana, United States, at the age of 58, and was buried in Fountain Park Cemetery, Winchester, Randolph, Indiana, United States.