Roy was born in Irymple, near Mildura before moving to Kilsyth at the tender age of 3 months. He is the son of another RDCA Life Member W. K. (Bill) Baldwin. Educated at Kilsyth State School, Richmond Technical College and Swinburne Technical College, Roy worked for the Melbourne Metropolitan Board of Works for 40 years, mainly as a Draftsman. Married to Kathleen, Roy had 3 children and has 6 grandchildren and 9 great grandchildren.
Roy was interested in sport from a very young age with his passions being Australian Rules football and of course, cricket. His football career included playing for Mitcham Under 18's where he came under the notice of the Hawthorn Football Club in the then Victorian Football League. His first year at Hawthorn was in 1944 when he played 16 reserves games before playing his first senior game against North Melbourne in Round 17. His form in the Reserves was so good he won the team Best & Fairest in that season, his first. In 1945 Roy played 17 of the first 18 games in the seniors before enlisting in the Army, serving in New Britain as part of the task force overseeing the repatriation of Japanese prisoners back to their homeland. He returned to Hawthorn in 1948, playing all but one game for the year. After hernia surgery, Roy played mainly in the reserves until the end of the 1950 season when he decided to retire from VFL football after playing 41 senior games.
In 1951 Roy returned to playing local football at Kilsyth where he was to play around 400 games over 22 seasons. His service to Kilsyth Football Club has been extensive – committee member for 23 years, EFL Delegate for 10 years, Secretary from 1975-81 and Best and Fairest from 1951 to 1955 and again in 1957. He was also Captain Coach of the Reserves Premiership team in 1967. Roy and his wife Kathleen are both Life Members of the Kilsyth Football Club in recognition of their extensive service to the club. Roy's mother and father (Bill and Elsie) were also Life Members of the football club. Roy had a long and successful EFL career, winning the Division One Reserves Best and Fairest 5 times in the 1960's and being recognised as an EFL 300 game plus Life Member.
Cricket was Roy's other sporting love. At Kilsyth Cricket Club Roy built an enviable record of achievement and involvement, both on the field and off. In a career spanning some 38 years, Roy played over 400 games, was Captain of the First Eleven for 8 seasons, and was on the Committee for an extraordinary 44 years, including one season as President (1970/71) and 26 years as Secretary (1971/72 to 1996/97). He was the club delegate to the RDCA for 28 years. On the field Roy was a competitive player and in the late 1970's and through the 1980's he won a number of club batting awards from the Third Eleven to the Sixths. Roy was awarded Life Membership of the Kilsyth Cricket Club in 1971.
Roy has also been a keen contributor to the RDCA. Besides many years as a Club Delegate, Roy played a number of representative games for the Association, including captaining an RDCA team against a combined District team on the MCG. He was on the Junior and Senior Executives for three and one year respectively. He was a selector for the senior representative teams for 3 years and was also Manager of the Association's Indoor Centre at Kilsyth for a year. Roy was awarded Life Membership of the Association in 1984/85 and, as recognition of his support of junior cricket, the Under 12 Division One competition is named 'The Roy Baldwin Shield'.
The Roy Baldwin Oval at Kilsyth has been so named to acknowledge the significant contribution Roy has made to the Kilsyth Cricket and Football Clubs. Roy has also been recognised by being awarded the Order of Australia (OAM) for services to Sport and the Community.