Family reunions are lots of fun to attend but can be overwhelming to organize! Especially if your family is big and spread out all over the country or the world for that matter. Here’s a timetable to refer to for your family reunion planning. Adjust as needed to fit the specifics of your event.
16 to 12 months before your Family Reunion:

* Get Organized - Create an effective family reunion planning committee. Ask family members who have a strong organizational streak- if the committee isn’t organized, the reunion won’t be either. Decide how often you should meet.
* Select a Family Reunion Type - How big and how expensive? Consider realistically what family members can afford.

http://purpletrail.com/partytrail/specialoccasions/familyreunion/planning-timetable-for-family-reunions/