found: Wikipedia, Apr. 29, 2013(Los Panchos (also known as the Trío Los Panchos) was an internationally famous Latin trío romántico known for its romantic ballads and boleros. Los Panchos first met in 1944 in New York City. The three original members were Alfredo Gil and Chucho Navarro, both from Mexico, and Hernándo Avilés from Puerto Rico. Los Panchos began touring internationally in 1946 and relocated to Mexico City. Julito Rodríguez joined the group in 1952; replaced by Johnny Albino in 1958. In 1971, Ovidio Hernández joined the band as lead vocalist and after his death was replaced in 1976, by Rafael Basurto Lara. Today, there are several trios claiming to be the rightful successors to the original trio, with Rafael Basurto Lara, still being the lead voice of one of them)
found: FIU Libraries WWW site, May 29, 2009:Digital collections; Encyclopedic discography of Cuban music, 1925-1960 (Trío los Panchos; formed by Alfredo Gil (b. Aug. 5, 1915, Tezaintlán, d. Sept. 10, 1999, México, DF), Chucho Navarro (b. Jan. 20, 1913, Guanajuato, d. Dec. 24, 1993, México, DF), and Hernando Avilés (b. Feb. 1, 1914, San Juan, d. July 7, 1986, México, DF) in New York, 1944.