Addison Elementary School

Susan Hallmark, Principal

Brad Cohen, Assistant Principal

3055 Ebenezer Road
Marietta, Georgia 30066
Phone: 770-578-2700
Fax: 770-578-2702

Addison Administrators


Susan Hallmark, Principal

Mrs. Hallmark's Blog

Susan Hallmark has lived in the West Cobb area for 31 years, and has been married to her husband Greg for 33 years. They have two daughters that attended Due West Elementary, Lost Mountain Middle and Harrison High School. Allison is a Physician’s Assistant at Kennestone Hospital and is married to Pete. They have a young son and live in the West Cobb area. Melissa is teaching at Mableton Elementary and is married and has recently moved to Paulding County. Mrs. Hallmark received her undergraduate degree from Auburn, and her Masters in Educational Leadership from Kennesaw State University. She received her Specialist Degree from Lincoln Memorial in 2009. She has taught everything from Pre-K to 2nd, 5th, 6th and 8th grades. Elementary was definitely her favorite! Mrs. Hallmark has been the Principal at Addison Elementary for the past 4 years. She says, "I am thrilled to be a part of the Addison Elementary community. It is a great time to be an Addison Gator!" Contact her at or (770) 578-2700.

Brad Cohen, Assistant Principal

Mr. Cohen's Blog

Brad Cohen was raised in St. Louis, Missouri. He has lived in Atlanta since 1996. He has served as a teacher and assistant administrator in Cobb County. Mr. Cohen is a graduate of Bradley University and received his Master's and Specialist Degrees from Georgia State University. He is a huge Cardinals fan, but you'll also see him rooting for the Braves! He and his wife, Nancy, have two children and 2 cats, Alex and Oscar. When he is not at school, you'll find him playing softball, watching or attending any sporting event, eating Chocolate Chip Cookies or traveling.  Contact him at or by phone (770) 578-2700.

Lee Ann Rivera, Support and Services Administrator

Lee Ann Rivera was born and raised in Sparta, a little town in Southern Illinois.  She obtained her undergrad in early childhood education at Northern Illinois University.  She received a Master’s Degree in Leadership at Kennesaw State University, and her Specialist Degree from Lincoln Memorial University in Curriculum and Instruction.  She and her husband Roberto have lived in Georgia since August of 2000.  They have five children, Jonatan (25+ Gabriella-daughter in law), Justano (21), Juliana(16), Jaelyne(15) and Jyliann (9).  Lee Ann has spent the bulk of her time in elementary education.  She has taught all grade levels with the last 6 years working with students with special needs.  Last year, Lee Ann took on the role of Support and Services Administrator at a Cobb Middle School.  She has a passion for helping students achieve success personally and academically.  When she is not at school, she likes to read and spend time with her family whether watching them play or sport, traveling or sitting on the front porch.  Lee Ann is super excited to be a part of the Addison Gator Family and looking forward to an amazing school year! #bethechange

Contact her at