The Marion Linn Chapter, NSDAR was organized April 18, 1928. Mrs. C.W. Cheback was instrumental in its organization, but passed on prior to the chapter being accepted by the National Society. The chapter was named in honor of two famous men whose names were used to name the city and county in which the chapter was formed: General Francis Marion, a Revolutionary War hero, nicknamed "The Swamp Fox," and Dr. Louis Linn, a United States Senator and physician who served as a surgeon during the War of 1812.

The following members were appointed as officers by the Organizing Regent, Mrs. Mary Hollingsworth:

• Vice Regent, Adeliza Daniels
• Recording Secretary, Nellie Lothian
• Corresponding Secretary, Bertha Owen
• Treasurer, Alberta K. Sigfred
• Historian, Anna Hewitt
• Registrar, Mary L. Parkurst
• Chaplain, Ida G. Bowman
• Press Correspondent, Grace Christie Koppenhaver

There were 18 ladies known as charter members.

The meetings were held on the second Wednesday of each month in the homes of members.  The annual dues were $2.00 for each member.

The Marion Linn Chapter was the first chapter to donate to the Iowa Period Room in Memorial Continental Hall in Washington, D.C.

When the Francis Shaw Chapter in Anamosa, Iowa, disbanded in 1988, many of the members joined the Marion Linn Chapter and are still active in the chapter today.