Morton L. Ervin

• A genealogical index of early Eddy County, New Mexico deeds, 1884 to 1905
• A genealogical index of early Guadalupe County, New Mexico deeds, 1891 to 1916
• A genealogical index of early Lea County, New Mexico deeds, 1900 to 1917
• A genealogical index of early Lincoln County, New Mexico deeds, 1869 to 1893
• A genealogical index of early Torrance County, New Mexico deeds, 1903 to 1920
• Index to Ervin/Irvin, etc. surnames in the Texas censuses, 1850 to 1920