In many larger Genealogical Societies or Latter Day Saints Family History Centers they have or can order Naturalization Records for you to view on microfilm. The New England Historical and Genealogical Register has be recording Genealogies and Genealogical information, four times a year since 1845. Newspaper Clippings are another source of good information for you. You will be able to find a few stories if you are lucky on your ancestor, find birth, marriage, and death records, other family members, and many other things. The library in the city your ancestor lived in may have back issues copied for you or they may be on microfilm.
Obituaries are great.
Check Libraries or Genealogical Societies for these. Again, be cautious with these, as they were submitted by a family member. Quaker Records are also a very good source, as they were excellent records keepers. Look for their Society of Friends Monthly Meeting Records. Pension Records will tell you a little history on your ancestor, where they lived, what battles they were in, sometimes where they were born and where they passed on.