Rainbow Park was constructed in the early 1980s on a piece of land that once was the northeast corner of Henry McCleary's mill. McCleary's tallest resident, Cecil "Primo" Boling, 1920-2000 (7 ft. 8 in. before his lower legs were amputated), was a resident there in his final years.
At one point in the 1990s the city allowed the residents of Rainbow Park to have a large fenced vegetable garden in the area where there is now a big gravel circle in Beerbower Park. The garden project was a short-lived concept.