Depending on what piece of information you are looking for, there are different types of records that will help you get those details. I hope to provide a starter for you here. Remember to think broadly as you research.
I Need These Details:
Birth Date - Best place: Birth Certificate Other sources that can help -
Marriage Date - Best place: Marriage Certificate Other sources:
Death Date - Best place: Death Certificate Other sources:
Wills, probate, estate papers
Immigration information - Best Place: Immigration/Passenger Lists, Naturalization papers (Petition for Naturalization, Declaration of Intention, Naturalization forms) Other Sources: