Born in Baltimore and raised in Windsor Hills, he was the son of attorney Herbert C. Forrester and Mary Davis, a legal secretary. He was a 1942 Forest Park High School graduate.
He enlisted in the Army's Air Corps during World War II. Trained as a pilot, he served until 1945.
He earned a Bachelor of Science degree in transportation at the University of Baltimore, where he also taught from 1962 to 1964.
Mr. Forrester joined the old Baltimore and Ohio Railroad in downtown Baltimore in the 1940s. When he retired in 1984, he was a senior assistant vice president of CSX Railroad. He worked in the company's division that set rates for moving freight.
He enjoyed fishing at Loch Raven Reservoir. He belonged to the Retired Administrators of the B&O Railroad. He also sang in a choral group at his assisted-living community.
He was a member of St. Joseph Roman Catholic Church.
Services will be held at 12:30 p.m. Wednesday at the Mitchell-Wiedefeld Funeral Home, 6500 York Road.
Survivors include a son, Mark C. Forrester of Hunt Valley; a daughter, Mary Theresa Forrester-Whipps of Lutherville; a sister, Mary Virginia Seymour of Lutherville; and four grandchildren. His wife of 56 years, the former Elizabeth Ann Geraghty, a St. Joseph Medical Center nurse, died in 2005.