After the United States took control in 1848, immigrants from Mexico settled in the north central part of the state. During the 1900s there was a heavy Hispanic emigration to other states, especially California.
The influx of Anglo-Americans first began about 1850, when the Santa Fe Trail was used by many on their way to the California gold fields. The eastern third of New Mexico was settled after the Civil War by Protestants from Texas. The southwestern corner attracted miners from other states after the coming of the railroads in the 1880s. Colorado ranchers and
Mormon colonists (after 1876) settled the San Juan Valley in the northwest corner of the state.
There has been no port of entry common to settlers of New Mexico. For information on passenger lists, see [[United States Emigration and Immigration|United States Emigration and Immigration]].
The first laws restricting immigration across the Mexican border were enacted in 1903. Records of Mexican border crossings from about 1903 to the mid-1900s are located at the National Archives.
Records of a few ethnic groups such as Italians and Hispanic-Americans are listed in the FamilySearch Catalog under NEW MEXICO - MINORITIES. Many records of American Indians are listed under the same heading. Also see [[Indians of New Mexico|Indians of New Mexico]].
== Mexican Border Crossing Records ==