The 1920s: Cyrus Avery and the founding of US 66
The museum's opening gallery covers the 1920s — the decade when Route 66 was conceived, designated, and constructed. The central figure of the gallery is Cyrus Avery, the Tulsa businessman and highway commissioner who is genuinely the father of Route 66. Avery served on the federal Joint Board on Interstate Highways in the mid-1920s and lobbied successfully for a Chicago-to-Los Angeles federal route that would run through Oklahoma — specifically through Tulsa, his home base. The route was officially designated US 66 in November 1926.
The gallery includes original survey documents, period photographs of the earliest paved sections of Route 66 in Oklahoma, vintage 1920s automobiles representative of what travelers actually drove on the new highway, and a substantial exhibit on Avery himself. John Steinbeck's coining of "Mother Road" — which appears in The Grapes of Wrath, published in 1939 — is contextualized in this gallery as the naming that gave Route 66 its enduring cultural identity even though the phrase came a decade after the highway's founding.
Beyond Avery and Steinbeck, the 1920s gallery covers the genuinely difficult work of construction. Large stretches of original Route 66 across Oklahoma were unpaved in the late 1920s — the road was a graded dirt or gravel surface that became impassable in heavy rain. The paving program continued through the 1930s, and visitors leave the gallery with a clear sense of how rough the earliest Route 66 travel experience actually was.