Benjamin Dominguez (1894-1974)

Benjamin Dominguez (b. Benjamin Ricardo Dominguez Elizarraráz) was born in Guanajuato, Mexico. He was an artist working with concrete. He lived and worked in Mexico and toward the end of his life in the United States where he created several playgrounds.

via friends of La Laguna:
http://www.friendsoflalaguna.org