[Mike V. Florida]

Let's step back, Your fathers' side of the family has a family reunion. You mothers side has one planned on the same date. Is that poor planning on their part? They both have you in common.

Same here, they are two different clubs with the same Model A in common.

Would it be nice if your fathers' side and mothers' side had the reunion on different days? Yea.

One more thing to figure in to picking a date. I believe it's the local region/chapter that picks the exact date based on the availability of a venue that can accommodate the crowds.