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This photo of Ken Rodriguez and his mother, Blanche, was taken on May 26, 1968 at the grotto at Our Lady of the Lake University about seven weeks after the world's fair opened.

This photo of Ken Rodriguez and his mother, Blanche, was taken on May 26, 1968 at the grotto at Our Lady of the Lake University about seven weeks after the world’s fair opened. Credit: Courtesy / Ken Rodriguez

This photo of Ken Rodriguez and his mother, Blanche, was taken on May 26, 1968 at the grotto at Our Lady of the Lake University about seven weeks after the world’s fair opened.