Corporate Archives of the Guardian Life Insurance CompanyCreated By: Guardian Life Insurance Company Publisher: Guardian Life Insurance Company, New York, N.Y.
Mutually Beneficial: The Guardian and Life Insurance in AmericaCreated By: Wright, Robert E. and George David Smith Publisher: New York: New York University Press, 2004
Official testimony taken before the legislative insurance investigating committee of the state of New York by authority of a joint resolution of the Legislature ...Created By: New York (State). Legislature. Joint committee on investigation of life insurance. (1905-1906) Publisher: Albany: Brandow Printing Company, State Printers, 1906. Volume 2 (Armstrong Hearings)
The Guardian Life Insurance Company, 1860–1920: A History of a German-American ExperienceCreated By: Rapone, Anita Publisher: New York: New York University Press, 1987
Underwriter Salvage Corps of CincinnatiCreated By: Dunshee, Kenneth Publisher: Cincinnati, n.p., 1957
