Little is known about Domínguez’s early life or work; he was born in Guanajuato, Mexico, and studied sculpture at the Escuela Nacional de Bellas Artes in Mexico City from 1922 to 1925, though it is unclear if he enrolled as a full-time student or simply took classes.5 One source mentions that he attended the Escuela Superior de Maestros Constructores (today the Instituto Politécnico Nacional).6 The latter seems more likely, since in 1952 the Mexico City government hired Domínguez to design enclosures for larger animals at the Chapultepec Zoo a task more frequently given to constructors rather than artists. These environments revealed his skill in exploiting concrete and pigmented cement, following the faux bois tradition of creating complex structures that resemble wood, with detailed textures created with acids and special tools like wire brushes applied to the material while fresh.7
Although the reasons for his emigration to the United States are unknown, he settled in El Paso, Texas, in 1956, where he designed his first playground, located in Washington Memorial Park. Archival photographs show four play sculptures in the form of lifelike animals (horse, elephant, fish, turtle), each formed from rubble covered with iron mesh as a base for polished cement, and painted with bright colors. The only one that survives is a turtle-shaped climber with indentations across its shell. Although Domínguez’s creations were cast in situ, he seems to have been inspired by industrially-produced playground equipment, like Milton Hebald’s “Tommy the Turtle,” manufactured by Creative Play Inc. since 1954.8 This initial project established his basic repertoire of designs, which he would revisit and modify in subsequent projects.
To gain further commissions, the artist, who barely spoke English, wrote letters to city officials offering his services (he translated them with the help of a dictionary). In 1960 he was hired by the City of Las Vegas to create play-sculptures for Fantasy Park (now destroyed); for this project the artist repeated the turtle and the fish from El Paso, but also created a “Happy Dragon,” with a friendly face and accompanied with seats in the shape of mushrooms.9 That same year, Domínguez was commissioned to develop play sculptures for the vast Whittier Narrows Recreational Area, in South El Monte, a suburb in the San Gabriel Valley, east of Los Angeles. Domínguez repeated some of his earlier designs (the Happy Dragon and the fish) with astonishing fidelity, considering they were created without molds. He also designed new creatures: a sea snake, a starfish, and a massive octopus, about three meters tall, one of his largest and most sculptural structures. Here for the first and only time he created an abstract climber, similar to those designed in the 1950s by Danish-Swedish architect Egon Møller-Nielsen, made of concrete with organic forms.10