Hello Robert,
What a timely question. My grandmother and I were just talking about our family's history. I just found out that her ascendants happened to be part of the Evangelista clan who originated from Candaba. If I'm not mistaken, the Evangelista's were one of the three major families who "owned" the Candaba marsh, as published in a Time Magazine article in the 1950's (of which article I have yet to find.)
Do you have an email address? Please send me a message so that we can contact one another. I am planning to bring my nephew to Candaba and show him where his relatives came from. I was informed by my grandmother that her mother owned land "as far as the eye can see". But that was then. They were the old rich. Now, we're the new poor. Haha!