I am researching my father's uncle, August Theodor Wille, who emigrated from Denmark to the US in 1907. I find him in the 1910 Census (see attached file) along with his wife, Agnes, and a 6 month old baby girl, Ruth Wille. She is very interesting to me, because I know nothing about her. However, the trail seems to run cold instantly.

Does anyone have an idea how to find out more about this family?

Many thanks in advance!