In 1945, approximately 4 houses and two small grocery stores were located north of 41st Street and east of Highway 97 in what was known as Garden Heights, now referred to as "old Prattville."

With the opening of the 41st Street bridge, the building of Keystone Dam and the migrating of Tulsa residents into the area, Prattville experienced phenomenal growth.

For 13 years, during the 21 hours per week that the library was open for service, the residents of Prattville checked out an average of from 3500–5000 items per month and attended storytimes and other events in very cramped space, unless the weather permitted having the programs outside.

After some red-tape setbacks and construction halts, the new $100,000, 3100 ft2 brick and glass Harry Pratt Library opened in February 1976 at 3219 S. 113 W. Avenue in Sand Springs—no longer called Prattville—complete with a lively red, white and blue decor and the much-demanded 50-person-capacity meeting room for community use.

The community meeting room was enlarged to hold 75 people, a new lobby was added to provide separate access to the library and meeting room, materials capacity was increased to 28,000 items, a new workroom was added for staff, a new bookdrop and book display area were made available to customers, the interior decor became serene teal, and the parking lot was expanded to hold 48 vehicles.

Pratt continues to offer a variety of in-house programs for all ages—book discussions, preschool storytimes, computer classes, famous person re-enactments, and workshops for teens on such topics as mask-making, hip-hop, acting, Mendhi.