Anna Osenbrugge, 1856-1938 , and Henrich Frederich, Klusmann, 1855-1940 were both born and married 1876 in Germany.  They immigrated to the U.S. in about 1880, settling first in Missouri, and then arriving in Anaconda, Montana in 1888.  As was the custom in those years,  Anna "americanized" her maiden name to Osenburg from Osenbrugge, and the couple's married surname was similarly changed to Klusman.