The cause of Guerrero's death Thursday at his home in Florence, Ariz., was not reported.
Guerrero was in his early 20s when he began working with Wright, The New York Times reported. The photographer had dropped out of art school and had only a thin portfolio, but Wright was interested in retaining Guerrero as his exclusive photographer.
"Seeing Mr. Wright's work in the desert, I decided I would approach it like sculpture," Guerrero said in an interview with the Times in April. "That pleased him very much."
Working with Wright established Guerrero's career, and he later photographed sculptors Alexander Calder and Louise Nevelson.
Working with Wright, however, was always Guerrero's first priority, his daughter, Susan Haley Smith Guerrero, who is an editor at the Times, said.
"In our family, we always called him, 'Mr. Wright,'" she said. "My father could have worked for others, but until Wright died he kept that to a minimum."
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