1964 Family Picture

When Mom and Dad came up for Christmas, in 2006, they brought this copy of a photograph that we sat for in Amsterdam in 1964. The photo shows me at the ripe old age of 15 (upper left). Carrie, Beverly and Audrey along with Mom and Dad, Oma Basma, Opa Bosma, Tanta Will and her husband and Carla all are in the picture.
Can you pick them out?