"Costa Rica, registros parroquiales y diocesanos, 1595-1992," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:NQLZ-PMQ : accessed 28 January 2016), Pedro Piedades Chaves, 23 Apr 1907, Baptism; citing San Isidro de Coronado, San Isidro de Coronado, San José, Costa Rica, parroquias de la Iglesia Católica, Costa Rica (Catholic Church parishes, Costa Rica); FHL microfilm 1,219,693.
"Costa Rica, registros parroquiales y diocesanos, 1595-1992," database with images,FamilySearch (https://familysearch.org/ark:/61903/1:1:NQK2-V4Y : accessed 28 January 2016), Engracia Chavez de Palma, 01 Jun 1923, Burial; citing Nuestra Señora de las Mercedes, San José, San José, Costa Rica, parroquias de la Iglesia Católica, Costa Rica (Catholic Church parishes, Costa Rica); FHL microfilm 1,219,616.
Costa Rica, Registro Civil, 1823-1975, database with images, FamilySearch(https://familysearch.org/ark:/61903/1:1:QVM5-19DC : 9 August 2017), Pedro Piedades Aguero Chaves, ; citing Birth Registration, Alajuela, Costa Rica, vol. 064, entry 2146, Archivos Nacionales (National Archives), San José.
"Arturo Agüero Chaves". Sede de Occidente. Biblioteca Arturo Agüero Chaves. February 27, 2014. Archived from the original on August 25, 2016. Retrieved January 28, 2016.
"Arturo Agüero Chaves". Sede de Occidente. Biblioteca Arturo Agüero Chaves. February 27, 2014. Archived from the original on August 25, 2016. Retrieved January 28, 2016.