Black and white photographs. Depicted: Santa Rosa, Santa Cruz Interurban (Ferrocarril Urbano de Matamoros) rail car hauled by a mule. "This mule car was used to carry passengers from the river to Matamoros as late as 1923"; "Prospective land buyers looking the Valley over with a land agent 1905 to buss a two-cylinder Franklin [Franklin automobile]."; U.S. Customs station at Hidalgo, Texas in 1910. "..roof of this building was covered with palm fans" "the frame building on the right was the office of the doctor an employee of the immigration service."; illegible receipt.