Urréjola married Graciana Othaz Bildostegui, daughter of Francisco Othaz Aguerre and Cristina Bildosteguy. (Graciana Othaz Bildostegui was born on 13 Jun 1873 in Navarro, Bs As, Arg, christened L16 F245 in Navarro, Bs As, Arg and died in La Plata, Bs As, Arg.)
