Here is a photo of Paul and Wilhelminia Junghans' second eldest son, Carl. It appears to be a high school senior photograph.
Based upon Carl's birth of January 7, 1889, I would guess it was taken around 1907 when he would have been 18 years old.
Genealogical site for the descendants of Carl Heinrich Junghans from Saxony, Germany. Contact me for the most comprehensive copy of the family tree. Junghans - Wisconsin; Yunghans - Indiana