Olive was born to John and Mary Henderson in Hebburn on Tyne, England. She moved with her family to Abernethy, Scotland as a young girl. She moved to London in 1942, following her half sister, Veronica Francis, to be a nurse’s aid during World War II. It was there that she met her future husband, Captain Donald S. Moloney of the U.S. Army Air Corps. They were married July 22, 1944, in Colchester, England. Mom was a true "war bride".

In April 1945 she came to America, residing with Don in Monte Vista, Colorado. It was there that she and Don began their family. They lived in Colorado until 1968, moving to Great Falls, then moving to Billings in 1970. She has lived in Billings since then.

Mom’s greatest pleasure in life was her children and family. She was a devoted mother and wife. She also was a member of St. Thomas the Apostle Church, involved with St. Rose of Lima Parish Circle. She enjoyed playing bridge and was a member of several clubs. In addition, she was a member of the British Bride’s Club.

Mom was preceded in death by her parents, her brother Douglas Henderson, half sister Veronica Francis, and her loving husband Don. She is survived by her children, Douglas (Cheri) Moloney of Colorado Springs, Maureen (Bob) Ille of Billings, Moira Ivey of Broomfield Colorado, Kathleen (Roger) Bernhardt of Billings, Brian (Gail) Moloney of Helena, Pauline (Jim) Freudenberg of Southport, North Carolina, sixteen grandchildren, and nineteen great-grandchildren. She is also survived by brothers and sisters in law Paul and Annette Moloney, Marie and "Scoots" Scoular, Pat Moloney, Bette Moloney, and Elaine Moloney, as well as 19 nieces and nephews.