Juan Bautista was born in 1884. He passed away in 1978.
Costa Rica, Registro Civil, 1823-1975, database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QKMW-Y3C2 : 9 August 2017), Juan Bautista de Jesus Carvajal Zuñiga, ; citing Birth Registration, Guanacaste, Costa Rica, vol. 99, entry 113, Archivos Nacionales (National Archives), San José.
"Costa Rica, registros parroquiales y diocesanos, 1595-1992," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:NQFF-TZC : 10 March 2018), Juan Bta. Carbajal and Maria Mora, 20 Aug 1904, Marriage; citing Espíritu Santo, Esparza, Puntarenas, Costa Rica, parroquias de la Iglesia Católica, Costa Rica (Catholic Church parishes, Costa Rica); FHL microfilm 1,103,967.
It may be possible to confirm family relationships with Juan Bautista by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Juan Bautista: