Della Lang Local History & Genealogy Room

The Della Lang Local History & Genealogy Room of the Jefferson County Library District is located at the Northwest Branch, 5680 State Road PP, High Ridge, MO 63049. An experienced staff provides services to a full range of patrons, from beginners to experienced researchers. Because of the collection’s size and continuous growth, the information below is brief. Specific titles can be identified in the library’s online catalog. 

Online Databases

Patrons with a valid library card have access to several valued online genealogical websites. Heritage Quest and Fold3 are accessible at any of the three branch location or from home via the library website. Ancestry-Library Edition is only available at the three library locations. The Jefferson County Library also offers free wireless internet for patrons. 

Newspaper Index Database
The Newspaper Index Database (NIDB) indexes names of Jefferson County (Missouri) residents found in local historical newspapers that are microfilmed and housed in the Northwest Branch Special Collection. The index includes names found in articles relating to items of genealogical interest. Births, deaths, marriages, probate, divorce, and other items of importance to the genealogist are included. Please be aware that there are some articles with local names not included, such as political, school-related, and many social events. New entries are added as time allows.

Start your genealogy searching here: includes records from the United States Census; military records; court, land, and probate records; vital and church records; directories; passenger lists and more!

Access to Ancestry Library Edition is provided through the generous support of the Jefferson County Genealogical Society and the Friends of the Northwest Branch Library.


Original historical documents collection that features military records, city directories, Native American archives, historical newspapers, naturalization documents and much more.

This collection assembles every available US federal census; family genealogies; local histories; and more!

Newspaper Source

Full text articles from national and international newspapers and selective regional newspapers.

Family Histories

The collection contains hundreds of compiled genealogies which range from multi-volume works to a few bound related family group sheets. Many are specific to Jefferson County; however, others are from families from the surrounding counties and around the nation.

Jefferson County, Missouri Resources

More than 6,000 printed volumes are testimony to the department’s effort to collect and have accessible publications and microfilm. Hundreds of historic local photos, and some one-of–a-kind manuscripts / items pertaining to 
Jefferson County have been added to the collection.  

Indexes and Guides:

Jefferson County Historical 
Photos Collection.  
Click on the arrows to see more.

Research Requests

Branch staff can perform searches of up to 5 names in any indexed genealogy materials held by the Northwest Branch for a $10 non-refundable fee. This fee, which must be paid at the time of the request, includes the cost of copies and postage. Make check payable to Jefferson County Library.

Submit requests in writing to:

Genealogy Department
Jefferson County Library, Northwest Branch
5680 State Road PP
High Ridge, MO 63049
Researchers are always welcome to visit the library, use our materials, and make their own copies. Black and white copies are 20¢ per page, color copies are 50¢ per page.