|Born in 1911 in Mexico City -- son of a builder and interior decorator. His primary and high school studies were completed in Mexico City, and he then entered the Academy of Fine Arts of San Carlos, where he remained five years. In 1928 he belonged to the organization of painters known as the Thirty-three.|
|above:Three women, 1940. lithograph|
|1932-1937: teacher of plastic arts in the Cultural Missions that included Oaxaca, Michoacan, Guerrero, Columa, Coahuila and Chihuahua. 1938-1941: returned to Mexico City and worked as a teacher in various high schools. A member of L.E.A.R., Dosamantes was, except for a short period, a member of T.G.P. since its founding in 1937. 1940: General Secretary of the Union of Teachers of Plastic Arts. 1941-1945: engaged in cultural missions, and in 1945, was director of a school of painting in Campeche.|
|below left: Mayan kitchen, 1946. right: An Indian child is born, 1939.|
During the cultural missions trips, he painted a number of murals in oil distemper in rural schools; among others in 1946, was one in Morelos, a house in Caracuaro, Michoacan, which is now (1949) a library. At present (1949) he works on the campaign against illiteracy, illustrating books for the Ministry of Public Education.|
left: Girls of Campeche combing their hair, 1946.
- 1932: Excelsior Gallery, Madero Street, Mexico City
- 1937: New York, and traveling to Washington, Philadelpia and Los Angeles
- 1945-1946: participation in the Campaign against illiteracy with a series of engravings. Created a series of lithographs on the life of the Mayas of Campeche.
- 1946 and 1948: Gallery of Mexican Art, Mexico, D. F. Paricipated in group exhibitions in Mexico, Cuba, Spain, United States and France.