All the festive events for the holiday weekend actually began on October 8th when friends gathered with Elsa Bakalar, our most famous and generous local gardener, to celebrate her 90th birthday. It's been a difficult year for Elsa with two broken hips and other injuries, but she was as ready for her party as any of us. Judy (left) worked with Elsa for many years in Elsa's house and gardens and Marie (center) has known Elsa since she…