Executive Committee

The Executive Committee of the Teton Photography Club is charged with developing programs and events, scheduling venues, communicating with members, and maintaining the financial and other records for the Club. The members are volunteers and receive no compensation for their work. The Executive Committee also serves as the officers and Board of Directors for our non-profit corporation, the Teton Photography Group.

The current Executive Committee members are:

  • David Navratil, President, Co-Director of Exhibitions & Galleries


David Navratil
David Navratil

I was drawn to photography by the images in classic magazines such as National Geographic and Life. The stories those images conveyed were very informative and powerful.  After college, I took a continuing education course in basic photography and purchased a camera. Unfortunately, a few years into a career in the tech industry, I gave up photography due to time constraints. 25 years later I moved from Texas to Jackson Hole, and the photography bug bit again. I enjoy taking black and white and wildlife, especially birds.  In addition, I also enjoy finding the unusual or abstract texture and shapes in both natural and man-made objects.


Loren Nelson
Loren Nelson

After over 30 years in academics reality struck when Loren Nelson decided to travel and take photographs on a full-time basis. Retirement allowed this “journey” to begin late 2010 and the travel started in March 2011. He spent nearly two years traveling among the national parks and public lands in the US and Canada to capture the beauty and harshness of nature to share these images with those who have similar interests.

In 2012 Nelson moved to Jackson and this was the the birth of Natural Photography. Since then Loren has built a portfolio of more than 140,000 photographs and continues to capture digital images of wildlife and their scenic environment in Jackson and the great western states.

He became a founding member of the Teton Photography Club in 2013. His work can be seen at:  http://www.naturalphotographyjackson.com/



Randy Isaacson
Randy Isaacson

After enjoying 40 years of teaching motivation, learning, and interpersonal communications at Indiana University, I was looking for “work” in retirement. Joining the TPC to update my photography skills helped lift my spirits. And working with other amateur photographers through the Peer Mentor Program has really motivated me to help others as I improve my own photography. The Peer Mentor Program is a group of about twenty advancing amateur photographers who meet together for a photo shoot and a critique every month. We work together to learn the technical and artistic aspects of photography, and we enjoy each other’s company. Read more about the TPC’s Peer Mentor Program on this site, read my blog at FirstAnAmateur.com.



Michael Cohen
Michael Cohen

I picked up my first camera when I was a kid.  When I was in high school you never saw my face because there was always a camera up to my eye. I shot high school basketball games and pictures of logs and stuff like that.  After high school I put the camera down for over 25 years.  On a trip to the Galapagos in I was introduced to digital photography and in 2004 I bought a Nikon D70.  Digital photography was still quite new, and not very good.  Other the years I’ve shot more and more, and digital photography has gotten better and better.

Now I spend a lot of time traveling and making pictures.  I shuttle between Boston, Jackson Hole, WY and the New England coastline, and wherever the next airplane takes me.

I love making photographs and hope you enjoy looking at them.  Thanks for visiting.  www.mscpix.com


Aaron Linsdau
Aaron Linsdau

Located in Jackson Hole, Wyoming, Aaron Linsdau is a commercial and adventure photographer. He has a passion for getting the shot, even if he has to go to the middle of Antarctica. His focus is on controlled lighting photography, specializing in jewelry, art (sculpture, painting), and product photography. If you need your painting photographed with color correction and a color reference, contact Aaron. His architectural composite images will bring in customers. He can make high-resolution images that you can make reproductions from. Email Aaron if you want images that will have customers calling time and again. Aaron has many satisfied clients in and around Jackson. www.aaronlinsdau.com



  • Rachael Dunlop, Website Image Editor, Director of Social Media

Rachael Dunlop

Rachael trained in analog photography immediately out of high school and went on to shoot bands in black & white, whilst working as a copywriter in advertising. Photography took a back seat in 2005 when she went to university to get a PhD in cell biology and she didn’t pick up a camera again until 2011, by which time everything had gone digital. She initially focused on birds, over time expanding her repertoire to other wildlife and some landscape.

Rachael is originally from Sydney Australia and has shot all over the world. She’s been in the Tetons since 2015 and spends as much time as she can in the field shooting unique wildlife like hummingbirds and grizzlies – neither of which she’d seen before coming to North America. Of the Tetons she says, “It’s a photographer’s paradise. It’s virtually impossible to take a bad shot here.”

Website: http://drrachie.com



  • Christine Paige, Co-Director of Education/Symposia

I am a wildlife biologist and science writer, and my happiest days are when I’m afield in some remote spot in the company of wild creatures. My husband and I have lived in the northern Rockies for more than 30 years, and in the Tetons since 2009. I feel fortunate to make our home in one of the largest intact wild ecosystems in the lower 48 with grizzlies, elk, and sandhill cranes just out the door. I’ve had a camera in my hands since I was a teen, and have always made photos during our travels and adventures, as well as photos to illustrate work projects. Now I’m trying to improve my skills to create more dynamic images and learn to tell visual stories. Through the Teton Photography Club, I’ve found a welcoming band of photographers who are happy to share knowledge and advice. I look forward to helping TPC with educational programs that reach all abilities, and promote ethical nature photography through the club’s Shoot to Care program.



  • Barney Koszalka 

I consider myself one of the fortunate few that can drive a few miles from my home and be in a place where Nature sets the rules.  Jackson is like that and many of the images that have won awards for me in regional and national competitions have come from this area.  When we settled in the Jackson area, the members of the Teton Photography Club were quick to share locations and techniques they developed for shooting wildlife and landscapes.  This sharing helped take my photography to another level with my work being recognized by the Sierra Club, the North American Nature Photography Association (NANPA), Carolina Nature Photographers Association (CNPA) and as a finalist in the Nature Comedy Wildlife competition. I’m committed to share what I’ve learned with other members as well as by contributing to CNPA’s Camera in The Wild quarterly magazine, conducting reviews and demonstrations of new post-processing tools and critiques for local photography clubs.


  • Lou Hochheiser 

Photography was always an interest from shooting my high school year book to developing my Vietnam photos in a 100 degree tent while supporting the marines.  However, an academic medical career and family took precedence for many years and my photography was of family children and those rare vacations.  My medical career mostly ended at age 81 and Jackson and its natural beauty rekindled my dormant interests in photographing.  Finding the Teton Photography Club with a full range of photographers, always willing to share their knowledge and a diverse enough group with skills from learning to exceptional has allowed me at the tender age of 84 to enjoy my dream and to become a better photographer. 

Lou Hochheiser, MD 
PO Box 912
Jackson, WY 83001