I've been looking up some of the schools from when you were posting about the ghost conferences. I have been able to fill in a few of the question marks.
Ghost conference 6-man
The Desert Conference:
Barstow - Merged with Pecos in 1969
Toyah - Merged with Pecos in 1973. Fought in court but Pecos ISD won
Pyote - Merged with Monahans in 1965
The High Plains Conference
Alanreed - Merged with Lefors in 1993
Bula - Merged with Three Way ISD in 1975
Carey - Merged with Childress in 1960’s
Dickens - Merged with Spur and Patton Springs in ??
Dodson - Merged with Wellington in 1969
Draw - Merged with O'Donnell in 1944
Estelline - Merged with Memphis in 1989
Flomot - Merged with Motley County in 1966
Kelton - Merged with Wheeler in ??
Lakeview - Merged with Memphis in 2000
Lela - Merged with Shamrock in 1990
Lipscomb - Merged with Higgins in 1976?
McAdoo - Merged with Spur in 1985
Mobeetie - Merged with Briscoe to form Ft. Elliott in 1991
Morse - Merged with Pringle to form Pringle-Morse
Oklahoma Lane - Merged with Farwell in 1949
Pettit - Merged with Levelland in 1964
Pringle - Merged with Morse to form Pringle-Morse
Pringle-Morse - Merged with Gruver in ?? (Gruver and Pringle Morse both appear to still have schools?)
Quail - Merged with Hedley in ??
Quitaque - Merged with Turkey in 1972 to form Valley
Roaring Springs - Merged with Motley County in 1966
Samnorwood - Merged with Wellington in 2012
Spade - Merged with Littlefield in 2005
Swenson - Merged with Aspermont in the 1940's
Tarzan-merged with Grady?
Union Terry - Merged with Wellman in 1997 to form Wellman-Union
Three Way - Merged with Sudan in 2003
Turkey - Merged with Quitaque in 1972 to form Valley
Wellman- Merged with Union Terry in 1997 to form Wellman-Union
The Permian Basin Conference
Ackerly - Merged with Knott in 1959 to form Sands ISD
Courtney - Merged with Stanton in the late 1950's
Divide - Merged with Blackwell in 1985
Dunn - Merged with Ira in ??
Eola - Merged with Eden in 1983
Flower Grove - Merged with Klondike in 1973
Fluvanna - Merged with Snyder and Borden County in 1975
Knott - Merged with Ackerly in 1959 to form Sands ISD
Millersview - Merged with Eden in ??1959?
Pyron - Merged in 1949 with Hermleigh and Roscoe
Sparenburg - Merged with Klondike in 1948
Union Dawson - Merged with Klondike in 1952
Wingate - Merged with Winters in 1991
The Big Country Conference
Avoca - Merged with Lueders in 1966 to form Lueders-Avoca
Bradshaw - Merged with Ovallo and Tuscola in 1946 to form the South Taylor CSD
Burkett - Merged with Coleman and Cross Plains in 1957
Carbon - Merged with Eastland in 1990
Centennial - Merged with Talpa in 1957 to form Talpa-Centennial
Comyn - Merged with Commanche in 1952
Desdemona - Merged with Lingleville in 1969
Dowell - Merged with Rotan in 1946
Girard - Merged with Jayton in
Goree - Merged with Munday in 2003
Hobbs - Split between Roby, Rotan, and Snyder in 1990
Lawn - Merged with South Taylor in 1957 to form Jim Ned
Lueders - Merged with Avoca in 1966 to form Lueders-Avoca
Mattson - Merged with Holliday in ??
McCaulley - Merged with Hamlin and Roby in 1987
Mingus - Merged with Gordon in the 1950's
Morton Valley - Merged with Eastland and Ranger in 1949
Mozelle - Merged with Talpa-Centennial in 1986 to form Panther Creek
Norton - Split between Ballinger, Bronte, and Winters in 1968
Novice- Merged with Coleman in 2013
O'Brien - Merged with Knox City in 1975
Olden - Merged with Eastland in 1969
Old Glory - merged with Aspermont in 1985
Ovallo - Merged with Bradshaw and Tuscola in 1946 to form the South Taylor CSD
Peacock - Merged with Jayton in 1964
Pioneer - Merged with ?? in ??
Putnam - Merged with Baird? in ??
Rochester - Merged with Haskell in 2005
Rockwood - Merged with Santa Anna in the 1940's
Sagerton - Merged with ?? in ??
Scranton - Merged with Cisco in 1946
South Taylor - Merged with Lawn in 1957 to form Jim Ned
Sylvester - Merged with Roby in ??
Talpa - Merged with Centennial in 1957 to form Talpa-Centennial
Talpa-Centennial - Merged with Mozelle in 1986 to form Panther Creek
Thurber - Merged with Strawn in the 1930's
Tuscola - Merged with Ovallo and Bradshaw in 1946 to form the South Taylor CSD
Vera - Merged with Benjamin in 1960
Weinert - Merged with Haskell in 1990
The North Central Conference
Boxelder - Merged with Annona in ??
Caddo - Merged with Breckenridge? in ??
Eliasville - Merged with Graham in ??
Five-in-One - Merged with Lockett in ??
Lockett - Merged with Vernon in 1969
Geraldine - Merged with Holliday in 1941
Masonic Home - Closed in 2004
Medicine Mound - Merged with Chillicothe in ??1940’s
Megargel - Merged with Olney in 2006
Odell - Merged with Chillicothe in 1958?
Oklaunion - Merged with Vernon in 1967
Sadler - Merged with Southmayd in 1960 to form S&S Consolidated
Southmayd - Merged with Sadler in 1960 to form S&S Consolidated
Thalia - Merged with Crowell in 1943
Westminster - Merged with Anna in 1989
The Hill Country Conference
Adhall- Merged with Cameron in 1958
Alexander - Merged with Stephenville? in ??
Bertram - Merged with Burnet in 1969
Buda - Merged with Kyle in 1968 to form Hays Consolidated
Carlton - Merged with Hico in 1969
Dale - Merged with Lockhart? in ??
Dowdy - Merged with Seguin in 1951
Fairy - Merged with Hamilton in 1967
London - Merged with Junction in 1963
Mosheim - Merged with Valley Mills in ??
Pearl - Merged with Gatesville and Evant in 1956
Pottsville - Merged with Hamilton in 1989
Richland - Merged with Pflugerville in 1945
Seaton- Merged with ?? in ??
Sharp - Merged with Rockdale in 1960
Turnersville - Merged with Gatesville and Jonesboro in 1967
Uhland - Merged with Hays ISD in ??
The East Texas Conference
Avery - Merged with ?? in 1956 (Still has a school district)
Batson - Merged with West Hardin in 1961
Bedias - Merged with Madisonville in 1940's
Butler - Merged with Fairfield in 1969
Byrd- Merged with ?? in 1957
Camden - Merged with Corrigan in 1972 to form Corrigan-Camden CSD
China - Merged with Hardin-Jefferson in 1961
Como - Merged with Pickton in 1966 to form Como-Pickton CSD
Corrigan - Merged with Camden in 1972 to form Corrigan-Camden CSD
Crescent - Merged with Eagle Lake in 1961
Devers - Split between Liberty and Hull-Daisetta in 1952
Eagle Lake - Merged with Sheridan in 1970 to form Altair Rice ISD
Enloe - Merged with Cooper? in ??
Fannindel - Merged with Ladonia in 1961 to form Ladonia-Fannindel
Greenwood Merged with Slidell?? in ??
Gaston - Merged with New London to form West Rusk CSD in 1965
Ladonia - Merged with Fannindel in 1961 to form Ladonia-Fannindel
Leesburg- Merged with Pittsburg in 1955
Nome - Merged with Hardin-Jefferson in ??
Pickton - Merged with Como in 1966 to form Como-Pickton CSD
Purdon - Merged with Dawson in 1937
Sheridan - Merged with Eagle Lake in 1970 to form Altair Rice ISD
Streetman - Merged with Fairfield in 1948
Union Ridge- Merged with Gilmer in 1949
Wallis - Merged with Orchard in 1974 to form Brazos Consolidated.
The South Texas Conference
Asherton - Merged with Carrizo Springs in the 1980's
Barksdale - Merged with Camp Wood in 1956 to form Nueces Canyon CSD
Big Wells - Merged with Carrizo Springs in 1953
Camp Wood - Merged with Barksdale in 1956 to form Nueces Canyon CSD
Dowdy - Merged With Seguin in 1950
El Jardin - Merged with Brownsville in 1952
Harwood - Merged with Gonzales in the 1950's
Hot Wells - Merged Sierra Blanca?? in 1952
Mirando City - Merged with Webb ISD in 2005
Nixon - Merged with Smiley in 1985 to form Nixon-Smiley CSD
Pawnee - Merged with Beeville in 1979
Smiley - Merged with Nixon in 1985 to form Nixon-Smiley CSD
Stuart Place - Merged with Brownsville ISD in 1946
Sutherland Springs - Merged with Floresville in 1954
Wilson Tract - Merged with Harlingen in 1948