There is no direct relationship that I know of. My GGF, Ferdinand Obst, Jr. (1866-1958), lived in Randolph County, Illinois. He had a sister, Anna (1868-1958), who married John Lang. I don't show a Dobschutz in my researches. Ferdinand Obst, Sr. (1836-1909) came to America from Weitenhagen, Greifswald, Germany. I don't have a record of any siblings, so there might be a link there.