The Cook county IL naturalization web site shows an Alexander Witkowsky (Witkovsky) b. 11/20/1890, arrived 11/19/09 from Bremen port, from town of Merez Lithuania. This is close to the town name Julius gives, but...no way to tell for sure if he's a relative.
I feel like I am missing something. I've tried rereading your other postings to get more background on Julius and I don't seem to find it. I gather that you don't know where Julius died, or when? Did he and wife divorce? What is her name, and their children's names? It seems like a lot of folks are posting what they find, but I'm not seeing any confirmation if it's right or not. Sorry for asking you to repeat yourself, but I feel I need more input.