My heartfelt sympathy at the loss of your wife, mother and daughter. There simply are no words that I can say that will ease your pain but please know that I am thinking of and praying for your family.
It was just over 32 years ago at this same time of year that my mother (and father) were also killed in a car crash. At that time my mother, also a teacher at Graham Elementary School, was mourned by a group of teachers, students, family and community and I know from this experience what a great comfort this will be for you, both now and in the future as you look back.
Again, my thoughts and prayers are with you!