I don't know an Otto A. Vahl, but I do have a Charles A. Vahl born 10/31/1880 in Kutzan (I have no idea where this is), Germany, Father - William, emmigrated around 1885, lived in West Town Area of Chicago, was a cigar/candy salesman, died 1928 - do you think they could be related? The only thing I have on Charles is after his marriage in 1901, know nothing about his German family other than what is listed above.