That same day, an intercounty highway was designated from SH 43's north end to Naples.

[2] On April 19, 1920, SH 43 was extended north to the Oklahoma state line via Daingerfield.

[11] On September 26, 1939, the section from Round Rock to Palestine had been transferred to U.S. Highway 79 (cosigned starting in 1934).

On August 30, 1950, the section from Karnack to Caddo Lake Park was transferred to FM 134.

With a length of approximately 85.8 miles (138.1 km), this highway offers travelers a unique and captivating journey through the heart of Texas.

[14] SH 44A was designated on July 20, 1920, along the part of the intercounty highway from Taylor to Milano.

[18] On September 17, 1929, it was rerouted east to Mount Enterprise, with the road to New Summerfield becoming a branch.