I've also been hunting for more information regarding the Walling Family. Admittedly, I only recently began my research, so I already know I am missing some obvious info. I'd love to get connected to others researching this line, so glad to see a board active as recently as 1 year ago.

Ferdinand's brother William is my GGGrandfather.
His wife was Anna C Weitz (Wurtz)
b. 26 Jun 1869 d. 09 Oct 1911
m. 26 Sept 1886 in Allen Twp, La Salle, IL.
She also immigrated from Germany around 1880.
They had two daughters, Elsie A. (b. 1892, GGrandmother) and Minnie C. (b. 1888)

I look forward to any connections, Sarah