The Baker Genealogy Center is located within the Topeka Room on the second floor of the library. The entire area is set aside as quiet research space. The Baker Center houses, in print, electronic form, or on microfilm, year books, birth, marriage and death records, family histories, obituaries, census records, marriage and cemetery indexes, military records, property, tax, and probate records, plat and insurance maps, passenger lists, naturalization records, and Topeka city directories.

Supplemental local history materials of use to genealogists held in the Topeka Room collection include county and municipal histories, biographies, historic newspapers, and migration histories.

Computers, microfilm reader-printers, and a photocopier are all available in the Topeka Room. To ensure full access to the collection, librarians provide professional service 78 hours a week, all hours that the library is open.