Shirley Zimmerman set a record for longevity as a Palo Alto middle school teacher – 49 years. She drove a green 1968 Mustang and wore a bouffant that made her instantly recognizable. On school days, she arrived at Jordan Middle School at 6 a.m., along with the custodians. A tall, stylish woman who had a taste for church music, cashmere sweaters and sunglasses, Shirley considered herself ...