Scraping Engaged People

Does anyone know if there is any possible way to scrape Facebook pages that are public of people who are engaged and/or people who have public email addresses?

I am trying to build a list of engaged people in the USA for lead generation purposes. Thanks!

There is a scraper on the marketplace for pages and groups:
blackhatworld>Marketplace>Misc> X2Emails

Obviously not everyone in related groups/pages will be currently engaged (eg got married, broken up etc) but some will be if you target the groups/pages well.

I'd especially go for groups, as if you've got married already you're less likely to stay in groups related planning a wedding