Researching in Puerto Rico

Question

The following may be of interest - https://www.academia.edu/26926494/Challenges_and_Alternatives_to_Caribbean_Family_History_and_Genealogy_Archives_and_Sources_in_Puerto_Rico

and

https://www.academia.edu/38531870/Erratum._Genetic_Genealogy_for_the_Study_of_Puerto_Rican_Spanish_and_Portuguese_Family_History_Lessons_from_the_Sotomayor_Col%C3%B3n_and_Pereira_Families

Answer 1

See also: 

https://www.academia.edu/38379849/Genetic_genealogy_for_the_study_of_Puerto_Rican_Spanish_and_Portuguese_family_history_lessons_from_the_Sotomayor_Colón_and_Pereira_families

https://www.qualifiedgenealogists.org/ojs/index.php/JGFH/article/view/62