Not sure if related, but check out the descendants of Max Ewald m. Caroline (Ciuffo Ewald Family Tree). I have been trying to find info on each child and find for some reason, they die young leaving widows. I am not sure if any male line survived. Out of 12 children, seems they were plagued with early deaths...which would leave orphans. They lived in Manhattan, then Brooklyn. My Ewald was married to his 2nd wife with 2 living children and died 3 days later. Fortunately, his bride kept the kids along with her own child, remarried, raised them in a good home.
There were 3 Ewald families during the late 1800's. Not sure if they were related to this Ewald family...hoping one day to find a male descendant who will participate in YDNA testing to find the right family connection.