The site would remain a grassy lot for more than a decade while the Legislature debated on funds for the Mansion.

That year, Oklahoma prospered due to an oil boom, which increased tax funds that the State collected.

Built by the Oklahoma City architectural company Layton, Hicks and Forsyth, the 14,000-square-foot (1,300 m2) Mansion is of Dutch-Colonial style.

Carthage limestone was used so the exterior of the Mansion would complement the Oklahoma State Capitol.

Once President Johnson left, the slab was converted to a private tennis court.

During the following decade, Oklahomans raised money for a private swimming pool in the shape of Oklahoma.

Extensive structural work was done to keep the kitchen capable of preparing state dinners.

The library's walnut paneling and moldings have been restored to both their original luster and the room's 1928 color-scheme of rich burgundy, gold and green.