Oh joy??! I just found another great uncle. Anna Amand Walle is on the 1915 New York State Census with Constance, Johann and AUGUST. August is listed as a son, born in Austria in 1893, aged 22 and working as a tool maker as my grandfather John was. His name was not with Anna, Constance and John on the Passenger record at Ellis Island. He would have been 7 years old at the time.
My records include an exception for my Grandfather, John from US military service due to his being sole support of a mother in 1917.Apparently, August was no longer in the picture at that time