H.W.
Hi C.,
I'm in the Portland Metro area-- you might want to check Portland Family magazine and Metro Parent for family friendly activities.
A wonderful homeschool mom name Laura Lucidae throws together a fabulous activities calendar each month on her blog "Stag Beetle Power". She updates a few days before the new month with lots of free educational events.
http://stagbeetlepower.blogspot.com/2013/11/december-even...
Here's a link to the meetups:
http://single-moms.meetup.com/cities/us/or/portland/
I think the sorts of relationships you are talking about take a lot of time to develop. Especially the holiday part-- I would focus first and foremost on creating fun traditions with your kids. Finding other parents who discipline/parent in a similar way is helpful to creating those long-term relationships. I'd just go out to do fun things and see who you meet, what they are like. The situations I know of where families get together for holidays are usually through a common religious organization or they are long-term friendships in the neighborhood-- something where the women in question have common interests (service work, cooking, crafting-- activities which lend themselves to communal participation). Good luck!