At the Library (or remotely with your library card number):
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
In-library and remote access (with library card number) to comprehensive genealogy resources, with billions of historical documents, millions of historical photos and other resources in thousands of databases that span the past five centuries.
Start your search
Genealogy Books in the Catalog
Not sure where to begin your research? The Lafayette Library collection and the additional collections of Boulder, Broomfield, Louisville, Longmont and Loveland are at your fingertips! There are many great books for beginning researchers and genealogy enthusiasts alike. You can also access statewide resources through Prospector and Mobius from your catalog search.
View genealogy results in the catalog
Historical Photos at the Lafayette Library
The Library has a great collection of historical photos and other archival resources documenting the rich story of the city and residents of Lafayette, Colorado and the surrounding region.
More local resources
Boulder County Latino History
Explore the history of the local Latino community through documents, personal stories, and photos.
Denver Public Library
DPL has extensive resources on genealogy, 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