Dr. Jefferson S. Hartzler

Dear family of Jeff Hartzler,

I expressed at greater length these appreciations at Jeff's retirement celebration, far too few years ago.

I've been a math teacher for as long as Jeff was, and Mathematical Modeling has been one of my favorite courses to teach. The last time I taught it, I decided to do it exactly the way that Jeff did. That kind of teaching was risky, being non-traditional, with no lectures, only group homework, and real-world problems to solve for which I...

Dear Hartzler Family,

I was extremely sad to see Dr. Hartzler's obituary. He was one of my professors from 1975-1977. Let me recount a story to you from those carefree college days. There were five of us that had signed up for a Math Modelling class so if one of us skipped class it was pretty obvious. At that time we were on a 4-day week with Wednesday off. Dr. Hartzler had a conflict several times where he could not conduct class on the scheduled day. Of course, we were all...

Dr. Hartlzer was a brilliant mathematician and instructor. His teaching style was clear and entertaining. He had a dry sense of humor that always seemed to kick in at the right moment. His legacy is the love of mathematics that he instilled in so many of us. A priceless gift indeed.

Please accept my condolences.

Dear Gwen and Family,

Peggy and I express our heartfelt prayers and condolences to you and your family at this time of great loss. May God give you peace and grace at this time.

Your old neighbors from Long Lane,

Laverne and Peggy Gehman

I am so sorry for your loss. I have great memories of your family when we would make it East in the summers. Our thoughts & prayers are with you.