Orison Swett Marden, an early New Thought writer, was the first president of the League.
Brice Marden | Marden | Orison Swett Marden | Marden, West Sussex | Luis Marden | River Marden | North Marden | John Swett High School | East Marden | Richard Swett | Orison Rudolph Aggrey | Marden, South Australia | Marden, Kent | Marden House | Leonard Swett |
Throughout its history, other New Thought notables such as William Walker Atkinson, Clara B. Colby, Florence Crawford, Horatio W. Dresser, George Wharton James, Edgar L. Larkin, Orison Swett Marden, and Elizabeth Towne were involved in the INTA.