A Mayan journey

San Quintin: Jungle between Las Margarita and San Quintin, Tojolabal Indians, 1955 Photograph: Gertrude Duby Blom/Courtesy, ©Asociacion Cultural Na Bolom A.C.

Frans with Lacandons in Bonampak, Chiapas, Mexico, 1948 Photograph: Gertrude Duby Blom/Courtesy, ©Asociacion Cultural Na Bolom A.C.

K'in Bor in Naja, Lacandon rainforest, Chiapas, Mexico, 1959 Photograph: Gertrude Duby Blom/Courtesy, ©Asociacion Cultural Na Bolom A.C

Trudi and Frans, (left), in Na Bolom with friends, (the Bordages), (right), c.1960 Photograph: Gertrude Duby Blom/Courtesy, ©Asociacion Cultural Na Bolom A.C.

Frans Blom on expedition, Lacandon rainforest, 1948 Photograph: Gertrude Duby Blom/Courtesy, ©Asociacion Cultural Na Bolom A.C.

The inside of the church of Saint John the Baptist, Chamula, Chiapas, Mexico, 1950s, where today it is strictly prohibited to take photographs Photograph: Gertrude Duby Blom/Courtesy, ©Asociacion Cultural Na Bolom A.C.

Tzotzil Mayas from Huixtan, in the park of San Cristobal de las Casas, Chiapas, Mexico, c. 1960 Photograph: Gertrude Duby Blom/Courtesy, ©Asociacion Cultural Na Bolom A.C.

View of San Cristobal de las Casas, Chiapas, Mexico, 1950s Photograph: Gertrude Duby Blom/Courtesy, ©Asociacion Cultural Na Bolom A.C.