To set the scene: my great-grandmother, Rhoda Ruth Prosser, was born in Hillsdale, Michigan in 1860. Her younger brother Charles was born about 1863 or 1864, and shortly afterward their father died in the Civil War. Their mother, Rhoda Prosser, married another Civil War veteran, Henry R. Jones. On the 1870 census of Hillsdale they are all listed with the surname "Jones", and on the 1880 census Charles is enumerated under his middle name, Douglas:
It was about 4 years ago that I decided to make another attempt to find out what happened to Charles. I did a search in the 1900 census Ancestry for Charles Prosser, born about 1864 in Michigan. And there he was - living in Chicago, Illinois, with a wife Anna and four sons: Lewis, Ray, Bert, and Earl. What convinced me was his occupation: printer.
Earlier this year I was doing an assignment for my ProGen study group, and needed to write a proof argument. I figured that given the evidence I'd collected, writing an argument to prove that Charles Prosser in 1900 Chicago, Illinois was the same man as my great-grandmother Ruth Prosser's brother, on the 1880 census of Hillsdale, Michigan would be a good exercise. One of the elements of the Genealogical Proof Standard is "resolution of conflicting evidence". In order to do a good job on my proof argument, I needed to find other Charles Prossers who were born around the same time, and prove that they weren't my relatives.
I found two Charles Prossers on the 1900 census of Michigan. One was living in Onondaga, Ingham County (near Lansing), was born in Canada in Oct. 1863, and worked as a blacksmith. This Charles Prosser (who I later discovered was actually named Solomon Charles Prosser) had a son named Earl.
Earlier this week, I decided to make another attempt at finding Charles Douglas Prosser's son, Charles Albert Prosser, who was born in Illinois in January 1898. It wasn't long before I found his World War 1 Draft Registration card. He was living in Detroit, Michigan, and preparing to start work ("today") at the Fischer Body company in Detroit.