Partial Genealogy on Mom's side

I'm Richard Mangonon Bernal, son of Jaime Almoite Bernal & Felicidad Ligaspe Mangonon(her maiden name). Unfortunately I don't speak any Filipino languages like Tagalog, Ilocano or Pangasinan. My sister, Linda Bernal Weidkamp, is doing some genealogy. My mom was born in barrio Babasit, Manaoag, Pangasinan and my dad from Ordaneta City, Pangasinan. My dad was born Irinio Jaime Bernal Almoite and changed his name to Jaime Bernal in Boston, Massachusetts in 1946. Felicidad's(my mom's) dad was Paulino Mangonon who married Alejandra Ligaspe and Paulino's dad was Silvestine Mangonon who married his 2nd wife Tomasa Pascua in 1870. What's fascinating is that Tomasa's dad was Acedo Pascua who married Leonarda Mangonon!! There's that Mangonon again. But Alejandra's parents were Jacinto Ligaspe and Filomena Doriches(spelling?) and her dad Jacinto's parents were Salvador Ligaspe and Rafaela Pascua!! And there's that Pascua again.
Two questions of note: Who was Silvestine's first wife? And who were his parents?
I just contacted another possible relative, James Christopher Nuto Mangonon, whose grandfather, Atty. Fidel Mangonon, was the former mayor of Manaoag, Pangasinan. His dad, Juanito Mangonon, was a fifth child and James is the first of five children.
So our genealogy has some twists and turns and if you have any connection or information(names and dates) to solidify any of that I would be extremely appreciative and of course I'd pass it along to the family because the Mangonon side is of great interest to us. I have a Facebook friend, Melchor Mangonon, whose father is Nimitz(that's right, named after the American Admiral) Mangonon, and he happens to be related to me somehow.