Re: Over 175 documented Soltis names
Sorry I can't find anything. I have a bunch of Andrew Soltis and some William Soltis but none of them have the names/years you mentioned.
Have you found your grandfather in the 1910 census yet or 1920? Did he have siblings?
Your great grandfather Andrew Soltis may have immigrated through Germany and that might be where the confusion lies. Many of my ancestors came through Bremen.
Send for some vital documents such as marriage certificates/death and birth. This will help you determine their place of birth.