Catherine Lynn Hammerle Addison, a resident of Mesquite, Texas, passed away unexpectedly at the age of 49 on May 27, 2021. She was born on August 9, 1971, in Saigon, Vietnam, to Curtis and Vee Hammerle. Catherine lived in Tehran, Iran, and started her education at Golestan School there. She graduated from South Grand Prairie High School and attended both Mountain View College and the University of Texas at Arlington. Catherine served in the U. S. Army National Guard and was employed by the Dallas County Family Courts for eighteen years. Catherine is survived by: her husband, Aaron Addison; her daughter, Alexis Addison; her parents; her brother, Bryan Hammerle; and countless friends throughout the Metroplex area. Family will receive friends on Tuesday, June 1, 2021, from 6-8PM at the Eastgate Funeral Home. Funeral services will be held on Wednesday, June 2, 2021, at 2:00PM in the Chapel at Eastgate Funeral Home. An inurnment following cremation will take place at a later date.