Looking for ancestral information...?

Question:I have been researching genealogy for a few years, and I keep coming to the same rut in my research: a family member who entered the United States illegally (this was a few generations back). Is there any way to find out anything else about him, foreign sites, etc.? (He was from Greece). I know his father's name, but nothing else. Thank you!

Best Answer - Chosen by Asker: I have been researching genealogy for a few years, and I keep coming to the same rut in my research: a family member who entered the United States illegally (this was a few generations back). Is there any way to find out anything else about him, foreign sites, etc.? (He was from Greece). I know his father's name, but nothing else. Thank you!

A few generations back? In what approximate year would be more helpful; for me, 5 generations ago was before the American Revolution.
Try the usual sites:
The biggest expense will be TIME; I have spent hundreds of hours and have so much left to compile.
Remember, no matter where you obtain the information, there are mistakes (yes, I include "official" documents, such as birth certificates, marriage licenses, death certificates, whatever). My maternal grandmother's tombstone doesn't even have her name correct!
Anyhew, as to searching, try these:
Free sites: there are several to choose from. Start with:
http://www.searchforancestors.com/...

http://www.censusrecords.net/?o_xid=2739...

http://www.usgenweb.com/

http://www.census.gov/

http://www.rootsweb.com/

http://www.ukgenweb.com/

http://www.archives.gov/

http://www.familysearch.org/

http://www.accessgenealogy.com/...

http://www.cyndislist.com/

Assuming they emigrated from Europe, start with Ellis Island and the Battery Conservancy sites:
http://www.ellisisland.org
http://www.castlegarden.org
For those with native American ancestry, try:
http://www.tribalpages.com/

For a fee, try a DNA test:
When you really want to know where your ancestors came from, try such sites as: www.familytreedna.com, dnatribes.com, dnaancestryproject.com, and, of course, the National Geographics Genotype program, https://www3.nationalgeographic.com/geno...
For Jewish ancestry, try:
www.israelgenealogy.com
Have a look at these sites these are South African ones,
http://genealogy.about.com/od/south_afri...
http://www.rupert.net/~lkool/page2.html....
http://www.jewishgen.org/safrica/website...
http://southafricanfamilyhistory.wordpre...

Meaning of names:
http://www.winslowtree.com/surname-meani...

http://www.familysearch.org/eng/search/f...

Finding live people:
Two good places I use are www.zabasearch.com and www.peoplefinder.com

Don't forget, use your local library. Ours (a small one, yet) has www.ancestry.com and www.heritagequest.com, as well as periodicals, books and guidance from an experienced genealogist.

Keep good notes on where you find what: sources are very important.

Good luck!

I bet his father was James K Polk