I have one sister, Christa, who is much younger than I am, 21 years younger, in fact. I have dedicated The Very Hungry Caterpillar to her.

My wife Bobbie and I were married for a long time. Sadly, Bobbie passed away in 2015. You might like to know that she was a teacher in early childhood special education and for many years worked with the parents of disabled children.

Cirsten, my daughter, and Rolf, my son, are now adults. They both studied art.

I have an orange cat named Mitzi. Over the years, Bobbie and I had a number of pets including a grey cat named Annie, a cat named Roberta and a Samoyed, a white dog, named Tock. Tock was named after the dog in The Phantom Tollbooth written by Norton Juster and illustrated by Jules Feiffer. Norton is a friend of mine.