Mark O'Donnell Klein Sr.
September 15, 1946 - July 12, 2023
Mark O'Donnell Klein Sr., age 76, of Ellicott City, MD, passed away peacefully in the evening of July 11, 2023. He was born on September 15, 1946, in Baltimore, MD. He was the loving husband of Susan L. Klein for the last 34 years.... View Obituary & Service Information
