Penny Turns out that Richard J. (1890) and Elmer Matthew (1895) Roos were the first and third sons of Christian Gottleib Roos (1870) and Anna Christina Rentschler. They had 5 other children. Christian's father was John Roos, born in Germany, and Mary Stoll. He had about 9 brothers and sisters. I have a bit more detail from notes left me by an aunt, who tracked local families as a hobby (copies in the Lincoln, Il. Library). She has some errors, but it is a good place to start. By now, it must be obvious to you that half a dozen German immigrant Lutheran families in the Chestnut area immigrated at about the same time, and their large families commonly intermarried over the succeeding generations.