Complex sentence: The first actions on the part of Bahá'í community towards Latin America were that of a few individuals who made trips to Mexico and South America near or before this unveiling in 1919, including Mr. and Mrs. Frankland, and Roy C. Wilhelm, and Martha Root.
Split into simpler sentences: The first actions on the part of Bahá'í community towards Latin America was that of a few individuals who made trips to Mexico and South America near to or just before this unveiling in 1919. These individuals included Mr. and Mrs. Frankland, and Roy C. Wilhelm, and Martha Root.