Meet our Team

Clay Cannon Dentist Team Members

Thank you for visiting Clay Cannon D.D.S., where your smile is our top priority!


Dr. Cannon and Dr. Brock have the knowledge and experience necessary to provide you and your family with a healthy and radiant smile. Our team is committed to providing an effective and comfortable patient experience. We proudly offer a relaxing office environment unlike anything you have ever experienced. Above all else, we look forward to developing long-lasting relationships with you and your family while providing you with the best care possible. Learn more about our Dentists.

Our Team

Lynda Witzky Hygienist, Clay Cannon Dentist, Tyler Tx
Lynda Witzky 

 Lynda Witzky is a Registered Dental Hygienist who graduated from Baylor Dental Hygiene School in Dallas, Texas in 1988. She was a medical missionary with Mercy Ships for 5 years and joined Dr. Cannon’s office full time in 2010.  

Lynda enjoys playing tennis and spending time with her nephew. She lives here in Tyler.

Maridel Wisehart Hygienist, Clay Cannon Dentist in Tyler, Texas
Maridel Wisehart

Maridel is a Registered Dental Hygienist who graduated from Del Mar College in Corpus Christi, Texas with an Associate of Applied Science in Dental Hygiene in 2005. She moved to East Texas in 2012 and has been filling in for our  hygienist as needed. 


In January 2018 she became a permanent part of our team. Maridel has two children and loves spending time with family and friends.  She also enjoys  serving along side her husband at Van Community Church. 

Rosa Campbell, Assistant, Clay Cannon Dentistry in Tyler, Texas
Rosa Campbell

Rosa is a Registered Dental Assistant who speaks English, Spanish, Portuguese and Jamamadi. She joined our team in October 2018. Rosa was born in el Salvador C.A. and lived in New York City as a teenager for five years before moving to Texas.


She attended TJC where she met her husband. Together they served as missionaries for 23 years in the Amazon rain forest of Brazil. They have two grown children, a son-in-law, a daughter-in-law and two grandsons. Rosa enjoys being involved at church, reading, walking and spending time with her grandsons, grand nieces and grand nephews.

Karen Walker, Assistant, Clay Cannon Dentistry Tyler,TX
Karen Walker

Karen graduated dental assisting college in San Diego, California. She and her husband moved to Houston, Texas in 1986 with their two boys. In 2004, she and her husband moved to East Texas.


Karen began working for Dr. Cannon in 2005. She now has three grandchildren who she visits in Houston. Her favorite hobby is fresh water fishing.

Karen Mclenney - Clay Cannon Dentist Coodinator, Tyler Tx
Karen McClenny
Scheduling and Financial Coordinator 

Karen grew up in Fort Worth, Texas. She began working in this dental office thirty years ago and loves it. Karen currently serves as the receptionist and scheduling coordinator.


She and her husband live in Whitehouse, have two children and seven grandchildren. Karen enjoys reading, church activities, RVing and kayaking with her husband and spending time with her children and grandchildren.