My Mom's family owned a candy store across the street from Palisades Amusement park in NJ in the 1950's, and your family used to bring their chimp and pony show to the park in the summer. During those years, the families became friendly. Mom's family is named Ruskie.
Some time in the 1970's, my Mom, Aunt and Grandmother brought my sister and me to Louisville, where we visited with your family and got a cool behind the scenes look at the zoo. I think my Aunt Maureen Ruskie is going to contact you, we have some photos of your family from this era that we would be happy to share with you.
My sister and I grew up hearing lots of great stories about Palisades Park and the candy store my family owned, and the 'Buddy and Elsa' stories featured prominently! My sister and I were about 4 and 7 when we came to visit you guys at the zoo, and it made a real impression to meet your large and loving family and all of the chimps!