every school i ever went to had T-Buildings (Temporary), as the school called them that were actuallt permanent. Even every school my kids went to had them. Heck, 2 of the schools my son went to were less than 5 years old and they already had them..
Phoebe Hearst had them back in 1970-74, and if you were in one then you were very likely a 5th grader.....so it was kind of a good thing....last time I passed the school I think they were still in place....
Don't remember for sure but I don't think TH Harris had them.....