Going off of the information found in Amalia’s baptism record I was able to find the death record of a Luisa Rodríguez Laboy, daughter of Dionisio Rodríguez and Francisca Laboy in August 1913 in Patillas, Puerto Rico (which fits into the range we had earlier between 1912-1919).
The death lists her as single, 25 years old (this a mistake as she was older), having died from paralysis. Her race is listed as parda (mixed-race) and the daughter of Dionicio Rodríguez and Juana F. Laboy, both natives of Patillas and deceased. Having this information also led me to find her baptism.
Luisa Rodríguez Laboy was baptized in Patillas, Puerto Rico the 19th November 1873. She is listed as the daughter of Dionicio Rodríguez and Francisca Laboy, her paternal grandparents are Juan Rodríguez and María Quiñones while her maternal grandparents are Pedro Laboy and María Leonor Rodríguez.
If this is the same Luisa, my 3rd great-grandmother, then I have added two other generations here via her parents and grandparents.
Still no mention of Masantini in any of these four branches which leaves me wondering…