The origin of the variant name "Theodore knot", used in the United States, is a corruption of the Spanish fiador.
Knotting authority Clifford Ashley relates Philip Ashton Rollins's suggestion that, "When Theodore Roosevelt, 'the hero of San Juan Hill,' visited the Southwest, shortly after the [Spanish-American War], it was a foregone conclusion that the Spanish name 'Fiador' would be corrupted to 'Theodore' in his honor."[REF] .