Theoretical Texas Boundary in New Mexico

Map of the 1836 Claimed Boundaries of the Republic of Texas

On Sunday, January 15, 2017 at 2:00 pm, Roger Zimmerman will present the timeline, details and outcomes of the various claims both the Republic of Texas and the State of Texas made for New Mexico territory.

The Republic of Texas claimed a western boundary in 1836 that included land east of the Rio Grande in what was considered the Territory of New Mexico by the Mexican government. Texas claims were without agreement of the government of Mexico or support of citizens living in the affected region. The Texas claims for boundaries were included in petitions for annexation with the US starting in 1836. President Andrew Jackson and the US Congress stalled the annexation petition and this continued until 1838, when the US and the Republic broke off annexation discussions. Finally in 1845, the US saw need to annex Texas and the Republic of Texas became the State of Texas. New Mexico residents did not get US citizenship rights when the State of Texas was formed because the boundaries were subject to the acceptance of these boundaries by adjoining governments, which did not happen with Mexico.

Boundary issues were drivers of the war between the US and Mexico, starting in 1846 and being concluded with the Treaty of Guadalupe Hidalgo in 1848. General Kearny proclaimed New Mexico as part of the US in 1846. The region of New Mexico east of the Rio Grande was not formally accepted as part of the New Mexico Territory until the US Congress Compromise of 1850.

The program will be held at the Albuquerque Museum in Old Town. Parking is free in the lot south of the Museum. Admission to the Museum and the AHS program is also free.

Photo of Roger ZimmermanSpeaker Roger Max Zimmerman was born at Rehoboth Mission east of Gallup, New Mexico. His early years were spent at Mariano Lake Trading Post. He graduated from high school at New Mexico Military Institute and enrolled at the University of Colorado where he received his B.S., M.S., and Ph.D. degrees. He taught Civil Engineering at the University of Colorado from 1959 to 1964 and at New Mexico State University from 1964 to 1979. He was then employed at Sandia National Laboratories where he worked on projects associated with the storage of nuclear waste, weapons components testing programs, and rocket systems target deployments. He retired in 2000. In 2013 Roger was elected President of the Albuquerque Historical Society.

Picture of Republic of Texas President and Mexican Governor of New Mexico