CAL. Death Record - THOMAS,ALVIELEE b. 02/16/1898 OK d. 9/5/45 Fresno. CA  mother's maiden name - Mc Clure father's last name - Thomas
1880 - Name: Nancy C. Mc Clure Age: 10 Birth Year: abt 1870 Birthplace: Arkansas Home in 1880: Hill, Texas Race: White Gender: Female Relation to Head of House: Daughter Marital Status: Single Father's Name: Joseph Mc Clure Father's Birthplace: Missouri Mother's name: Loucinda Mc Clure Mother's Birthplace: Arkansas Occupation: Home
Joseph Mc Clure 32, MO - farmer Loucinda Mc Clure 32, ARK Nancy C. Mc Clure 10, ARK John J. Mc Clure 8, ARK Pompie Mc Clure 6, ARK Margrette Mc Clure 4, ARK Thomas H. Mc Clure 3m, March 1880, TX
This is the reason you can't find any records for Nancy after 1880; 1890 census was destroyed by fire in the 1920's.So, there is a 20 yr gap in the census records 1880 - 1900.Nancy may have died or divorced George.
1900 - Name: George Thomas Age: 34 Birth Date: Jun 1865 Birthplace: Texas Home in 1900: Justice Precinct 6, Fannin, Texas [Fannin] Race: White Gender: Male Relation to Head of House: Head Marital Status: Married Spouse's Name: Etter Thomas Marriage Year: 1888 Years Married: 12 Father's Birthplace: Missouri Mother's Birthplace: Missouri Mother: number of living children: 3 Mother: How many children: 3 Occupation:
George Thomas 34, 6/65 TX - farm laborer Etter Thomas 19, 4/81 TX - wife George C Thomas 9, 11/90 Indian Terr. [aka - OK] Joe J Thomas 8, 1/92 Indian Terr. [AKA - OK]
Here is another reason why there is no record for the Thomas family -
General Information – 1870 census Four new states were added to the Union between 1860 and 1870 for a total of 37 states: Kansas, West Virginia, Nevada and Nebraska. In addition, six new territories were created: Dakota Territory, Colorado Territory, Arizona Territory, Idaho Territory, Montana Territory and Wyoming Territory. The Unorganized Territory, unofficially called the "Indian Territory" was not enumerated for non-Indians in 1870.
General Information – 1880 census Colorado was the only state admitted to the Union between 1870 and 1880, bringing the total to 38 states. Eight territories were enumerated: Arizona, Dakota, Idaho, Montana, New Mexico, Utah, Washington and Wyoming territories. Unorganized Alaska was enumerated, but the "Indian Territory" was not enumerated for non-Indians. Unlike any previous censuses, after microfilming, the original 1880 census schedules for several states were transferred from the National Archives to various state archives, state libraries, or universities libraries. Only the original 1880 schedules for Pennsylvania remain at the National Archives. Several originals were later transferred to the National Society Daughters of the American Revolution in Washington, D.C.
OK Vital Records - Original birth and death records date back to October of 1908.A “delayed” certificate of birth could be filed by an individual whose birth was prior to that date if they had a need for the record and the documentation to establish the facts of birth.
TEXAS Vital Records - The Texas Vital Statistics law to register births and deaths was not passed until 1903.Texas was then and is now a dual registration state which means the local registrars retain a copy of all birth and death records for the events that take place within their jurisdiction and the state retains the original of all birth and death records for the entire State of Texas.However, the statutes for registering these events were not made mandatory until 1926.However, many local registrars did not adhere to the statutes until the late 1930’s or early 1940’s.This means some records reside only in the local registrars’ files and not with the State.
statement source - Sherry Crawford Group Manager Request Processing Vital Statistics Unit (888) 963-7111, ext 6195 ________________________________________