In 1910, Carl Junghans and wife Hannah were also living in Vincennes, Indiana. Carl and Hannah had married a years earlier, in 1905. I have yet to locate the 1900 US Census for Carl.
It is hard to read the year of immigration, but according to the 1920 Census (which I'll post later) he immigrated to the United States in 1882.
Of the 4 Junghans brothers, Carl did not have any children, and I'm not aware that he had been married previously, so that portion of the family tree ends with him.