He was 75.
He earned a bachelor's degree in business administration in 1959 from the University of Missouri and later attended graduate school at the university.
Mr. Haw served in the early 1960s in the Army in Texas, Maryland and Greece, attaining the rank of lieutenant.
He began his business career in the 1960s, working in purchasing for Yale Forklift. He later joined T.M. Wardian Associates, an Elkridge industrial forklift battery supplier, where he was vice president of administration.
During the early 1980s, he was vice president of administration for Dr. Cully's Cartage Co. in Hunt Valley, and he later worked in the same capacity for Overland Trucking Co. in Alexandria, Va.
Until about four years ago, he worked part time for Tire Distributors in Rosedale.
Mr. Haw was a Terps basketball and football fan. He enjoyed gardening, tennis, country line dancing and working with his computer.
A Mass of Christian burial was offered Monday at St. Joseph Roman Catholic Church in Cockeysville. .
Mr. Haw is survived by his wife of 13 years, the former Ellen Regina "Jeannie" Link; two sons, Marvin T. "Boo" Haw IV of Glen Arm and Miles P. Haw of Federal Hill; three daughters, identical twins Theresa Athena "Terri" Smith of Perry Hall and Denise Aphrodite "Denni" Crouse, and Wendelyn Joyce "Wendy" Haw, all of Perry Hall; a stepson, Timothy Burrier of Milton, Del.; two stepdaughters, Dawn Croft of Laurel and Allison Edgar of Hampstead; and nine grandchildren. An earlier marriage to the former Martha Joyce Thorne ended in divorce.