About Us

When You Visit

Preparing in advance will make your research trip more productive. Please call in advance to verify that the department is staffed the day of your visit. If you have any questions, email Ginger, or call 636-677-8186.


We welcome donations to the genealogy department. We accept donations of publications, family histories, photos and other items of genealogical merit. Contributions are a tangible and meaningful way to support the department, ensuring its tradition of excellence for the benefit of the community. Restrictions on size and shape do apply.

Close up on metallic letters that say "Della Lang Room Genealogy"

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.

Black and white photo of Pioneer Tavern in Cedar Hill Missouri

Research Requests

Branch staff can perform a search a of up to five names in any indexed genealogy materials held by the Northwest Branch for $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.

Interlibrary Loan

Interlibrary loan is available for books, microfilm and other materials with a valid Jefferson County Library card. Although some libraries, including Jefferson County Library, will not loan genealogical materials, copies of an index or a few pages can often be obtained for a nominal fee.

The Northwest Branch is a designated Family History Center via FamilySearch.org!
This organization ended its microfilm circulation services to Family History Centers and now provides access to nearly all of their restricted image collections in digital format only through affiliated Family History Centers.