Hidden Ancestors
Death Records
Death records are primary source records for date, time and place of death because they are completed at, or close to, the time of the death by someone who was present at the death.  The remainder of the information is considered a secondary source because it came from someone who knew the deceased (an informant).

Death records are the most recent record available about an ancestor and may often exist for someone who has no birth or marriage record.  

Social Security Death Index  -  FamilySearch
United States Deaths and Burials, 1867-1961  -  FamilySearch
Rootsweb Death Index  -   Rootsweb
U.S., Select Deaths and Burials, 1867-1961 -  Ancestry  ($)

Texas, Death Index, 1903-2000   -  FamilySearch
Texas, Death Index, 1964-1998 -  FamilySearch
Texas, Deaths and Burials, 1903-1973   -  FamilySearch
Texas, Deaths, 1890-1976  -  FamilySearch
Texas, Deaths, 1977-1986 -  FamilySearch
Texas County Archives  -  USGenWeb Archives Project
Texas Death Index, 1903-2000  -  Ancestry  ($)
Texas, Death Certificates, 19031982  -  Ancestry ($)

Tennessee, Death Records, 1914-1955  -  FamilySearch
Tennessee, Deaths and Burials, 1874-1955  -  FamilySearch
Tennessee, Deaths and Burials Index, 1874-1955  -  Ancestry ($)
Tennessee, Death Records, 1908-1958  -  Ancestry ($)
Tennessee, City Death Records, 1872-1923  -  Ancestry ($)
Tennessee County Archives   -  USGenWeb Archives Project