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Obituary of Guillermina Montero Guillermina Montero, 67, of San Antonio, USA, passed away peacefully on November 14, 2025, at 2:13 PM. Guillermina was born on June 25, 1958, in Monterrey, Mexico to parents Juan and Ildefonsa Osteguin. Guillermina was a woman of deep faith and found comfort in...
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