I have some updates
Wild Ones (Tiger prod) - Indianapolis
Children (New York) - Redlands, CA, Latino teens
Royal Bloos (Rafta) - Bealsville, Ohio
Kathy Royal (Hilton) - Huntington, WV
Eleventh Tomorrow (Accident) - IN college students relocated to Cincinnati
Group (Adco) - Cincinnati
Mysteries (Brad) - Buford/Lynchburg, Ohio
Counts (Teen, Pixie) - Hamilton, Ohio
Operations (Chance) - Hamilton/Oxford, Ohio. Correct name was Operation (no plural). Later re-recorded the songs as Jabberwocky
Caesar and the Romans (Hi-Note) - Monroe, Michigan, there is another 45 by them not listed in (B)TBM
Spring Rain (ARC) - Pendleton, OR (I think that' s the city, somewhere around there)
Marquis (Earl 1004) - Love re: Country Joe and the Fish / The Drifter re: Bud and Travis, using the HP Lovecraft (1st LP) arrangement. I'd rate both sides 6 to 7
Marquis (Earl 1002) - Geneveive also recorded by Dart and Ray Spencer
Tempters (Link) - Oxford, Ohio
Genesis (no label, Ohio University) had two later 45s on Mushroom label, not TBM material