Aida Josefina Pineda de Mendoza and Miguel Jose Mendoza had 4 children in Guatemala between 1944 and 1953. Miguel Jose died in Mexico in 1952/53 and Aida died September 19, 1962. Their youngest child is Miguel Angel, whom I know. I am searching for their son, Juan Jose (the oldest of the 4), and their 2 daughters (cannot recall their names after all these years).
Juan Jose and his 2 sisters emigrated to either Connecticut or New York in the 1950's. They visited their mother in Guatemala at least once and their brother, Miguel, visited them in New York/Connecticut once, about 1964. Also, these children have an uncle Rodolfo Pineda (Aida's brother) and an uncle Guillermo Morales Sandoval (Mendoza)[their father's brother]. Guillermo and his wife, Coila Garcia Bolaños, took care of Miguel Angel after Aida passed away. Guillermo and Coila eventually emigrated to Spain.
Other possible surnames: Morales, Sandoval, Quiroga
Other family members are cousins Jose Luis Cifuentes, Ruben Cifuentes, Coila Cifuentes, and Maria Elena Cifuentes; their mother was Miguel Jose Mendoza's sister.
Aida had a 2nd husband [name unknown] and they had a son born about September 19, 1962 in Guatemala City, name unknown.
If you have anyone on your tree that could be one of these persons I would love to hear from you.