The Leavenworth County Historical Society has been collecting, preserving and promoting the history of the first city of Kansas for nearly 65 years.

And the organization has plans to expand its operation.

The LCHS has launched a campaign to build and endow a research center of early Kansas history at the Carroll Mansion Museum, home of the organization.

The LCHS finalized architectural plans last summer for the research center, which will be built on to the existing museum at 1128 Fifth Ave.

The new facility will provide archival storage of artifacts, including the organization’s rare collection of 30,000 glass plate negatives of early Leavenworth.

There will be rooms for research as well as a public area for historical presentations and meetings.

“Building a research center is quite a substantial project for a small museum and a small community,” according to a press release.

The organization is seeking individuals and foundations to support the effort. The LCHS is seeking opportunities for matching funds and will offer naming rights to the facility.

Tax-deductible contributions and pledges toward the building and endowment of the research center are being sought by the organization.

For more information, call the LCHS at 913-682-7759 or email museum@leavenworthhistory.org