I found that my ggrandfather, Henry Louis Groppe(born 1 Jun 1874 in Germany) - registered for the draft in World War One in Chicago.
On his registration card, he listed that his closest relative was an older "sister", named Mary K. Groppe(born July 1866 in Prussia, Germany).She was married to Otto C. Vehrs, Sr.(born April 1860 in Prussia, Germany).
So far I have found that the Vehrs has four children:
Frieda S Vehrs(born Sept. 1887 in Illinois), Minnie S. Vehrs(born Feb 1889, in Illinois), Otto John Vehrs, Jr.(born 18 Feb 1890 in Chicago, Ill), Albert H. Vehrs(born Mar 1896 in Illinois).
Could no re-locate anyone on the 1930 Federal Census.
Does anyone recognize anyone in this family as someone who's a great aunt/uncle in your family tree?