In 1915, the Indiana General Assembly created the Indiana Historical Commission which led the planning, preparation and conduct of the celebration of Indiana's Centennial. Local Centennial committees were organized throughout Indiana. John Hampden Holliday, publisher of The Indianapolis News, was the chairman of the Indianapolis committee.

Sometime during the weeks of Centennial celebration, Mr. Holliday came upon the notion of organizing a society composed of people who were descendants of the early settlers of Indiana, the pioneers who opened the State to civilization, thereafter discussing, promoting and planning it with family, friends and acquaintances. On September 15, 1916, Mr. Holliday and a considerable number of people met to hear the report of a planning committee and its presentation of a proposed constitution that was adopted by those attending. In a subsequent order of business Mr. Holliday was elected the first President, a position he held until his death in 1921.

Today, there are four classes of membership available to those persons interested in the goals of the Society: Regular, Junior, Associate and Honorary. More information on becoming a member of The Society of Indiana Pioneers is available on the website.