Ancestry Library Edition

Search billions of genealogy documents—including census, military, immigration, birth, and death records. You may only access this resource at the library. 
Start your search (Library access only) | Tutorials | Help 

Denver Public Library

DPL has extensive resources on geneaology, and Western and African-American history, that can be viewed online or in person, as well as resources and classes for learning how to do genealogical research. Cardholders of the Denver Public Library can access additional research databases online.
Visit DPL genealogy website 

National Archives at Denver (Broomfield)

Extensive records can be explored at the facility (17101 Huron Street, Broomfield, CO 80023), and accessed online. Workshops are also held to teach the public how to do genealogical research.
View records online |  View workshop schedule