H.R. No. 684 is a resolution honoring Chief Russell Martin of the Tonkawa Tribe of Oklahoma, who visited the Texas State Capitol on February 6, 2025. The resolution highlights the rich history of the Tonkawa Tribe, which has been based along the Chikaskia River in northern Oklahoma since the 1880s, and their deep ancestral roots in Central Texas. The Tonkawa were historically composed of warrior subtribes that engaged in trade and formed alliances with Anglo settlers, notably aiding in various conflicts and providing protection during the Archives War. Despite their contributions, the tribe faced significant challenges, including exile during the Tonkawa Trail of Tears in 1884.

The resolution acknowledges Chief Martin's efforts to strengthen the tribe's connection to its historical homeland, including the recent purchase of a sacred site, Red Mountain, in Milam County. It also recognizes the official acknowledgment of the Tonkawa's contributions by local government entities during Tonkawa Friendship Day in September 2024. The Texas House of Representatives expresses its respect for Chief Martin and the Tonkawa Tribe's heritage, extending best wishes for future celebrations of their proud history. The resolution was adopted by the House on April 17, 2025, with a vote of 133 in favor and 7 against.