When forming the first 4 tables, Florence Terry Griswold saw the convenience of grouping them together, so she formed the State Association of Texas, with the first Tables (San Antonio, Laredo, El Paso and Austin) to serve as a link and contact between them and those that will be formed in the future.

On February 22, 1922, the first State Convention of the Pan American Round Tables was held in the “Rose Room” of the Gunter Hotel in San Antonio (Texas), which was attended by the 4 existing Round Tables.

With the growth of Mesas both in the United States and beyond, Florence Terry Griswold envisioned an institution at the level of the Americas, a concern that was realized after her death by Mrs. Katherine J. Stone Robinson.

The first Convention, held in Mexico in October 1944 with the participation of all existing Round Tables, marked the beginning and creation of the Alliance of Pan American Round Tables, the name the organization bears today. The first Board of Directors was also elected, with Ms. Katherine J. Stone as its first Director General.

During the Convention Board Meeting in 1967, the MRP of Managua presented a paper to elect a Member or Official who distinguished herself in her Pan-American career and whose attitudes were consistent with her Pan-American and personal work.

This appointment, called "Pan American Woman", was made annually until 1976, when it was agreed that it would be for a period of two years.