Horacio Celi Mendoza was born in Piura, Peru, on 3 January 1897. When he was in his 20s, he married Zulema García, with whom he had 12 children.
According to his physician, Dr. Araceli Guzmán, he maintained impressive lucidity for his age and remembered the past with clarity and precision. He also lacked most health problems associated with age: he was not hypertensive, his blood pressure was perfect, and he never had diabetes. However, his vision was failing in his later years due to cataracts, and had difficulty walking.
Horacio Celi Mendoza died in Campo Polo, Piura, Peru, on 25 September 2011, at the age of 114 years, 265 days. Nine of his children outlived him: Luz Cristina, Miguel, Olinda, Rómulo, Gabriela, Juan, Horacio, Juana, and Isabel. At the time of his death, his oldest living son, Miguel, was 84 years old.