ISTA Leadership Team


Dr. Brenda Pike, Ed.D., CAE, Executive Director



An educator for more than 35 years, Dr. Pike is a native of Tennessee. She joined ISTA as Executive Director in 2010 after having served on the staffs of the Texas State Teachers Association and the Tennessee Education Association. She holds an Ed Specialist and Doctorate from Memphis State University. She is married to her husband, Wayne, and has two adult sons, Jason and Brent.


Teresa Meredith, President


A kindergarten teacher at Thomas A. Hendricks Elementary, Teresa has taught in Indiana's public schools for over 20 years. Teresa and her husband Chris have four children.


Keith Gambill, Vice President



Keith Gambill is a middle school music and drama teacher from Evansville. He served as Evansville Teachers Association president before becoming ISTA vice president. He has taught in Evansville’s public schools for 26 years. Keith also serves as chair of the ISTA Foundation.


Callie Marksbary, Treasurer


A third grade teacher at Vinton Elementary in Lafayette, Callie has been a public school teacher for over 37 years. Before serving as ISTA treasurer, she served on the NEA Board of Directors. Callie and her husband Rob have two children.