Includes correspondence, reports, research files, and other documentation related to Kaiser's work as the Director of Tacoma Public Library and as a leader in national, regional, and state library associations. Research files and related correspondence are also included in the papers, particularly on the topics of school librarians and the restoration of the name of Mount Tahoma. As Library Director during World War I and the 1918 Influenza Pandemic, Kaiser's papers also intersect with these topics and their impact on libraries.

F.F. Hopper's Correspondence with Kaiser about issues at the Tacoma Public Library. Hopper now works for New York Public Library.

Correspondence with Washington State government officials.

Correspondence pertaining to the relationship between public libraries and schools.

Letters to and from Washington residents, companies, and organizations.

Letters to and from people, companies, and organizations abroad.

Correspondence between the Tacoma Public Library and the Seattle Public Library, mainly between Kaiser and J.T. Jennings.

Correspondence between Kaiser representing the Tacoma Public Library and other librarians based in midwestern states such as Wisconsin, Ohio.

Correspondence between Kaiser representing the Tacoma Public Library and other librarians based in eastern states such as New York, Massachusetts.

Correspondence between Kaiser and administrators at Western Reserve University, some letters focused on alumni

Correspondence with Tacoma Public School administrators concerning libraries.

Correspondence with the Rhodes Company about closing of the library section at the Rhodes Department Store.

Correspondence about subscriptions not received or incorrect.

Correspondence seeking advice on how to deal with library books that were exposed to infectious diseases.

Records about the running of the Tacoma Public Library.

Tacoma Public Library Board Minutes

Tacoma Public Library Staff Correspondence

Correspondence regarding employment at the public library.

Records and correspondence gathered about the ability to use tax levies to fund libraries and senate Bill 86.

Correspondence concerning the Washington State Library board

Correspondence concerning the Washington State Library board

Records containing corresponding with Mrs. H.W. Patton, chairman, Dr. Henry Suzzallo, and Dr. E.O. Holland

Annotated Bibliography of Kaisers writings published from 1911 to 1958 created by the Newark Public Library in honor of Kaiser's retirement in July 1958.

Publications from libraries and the American Library Association

Miscellaneous notes