History of American Summer Vacations

Hey. I've tried looking for "history of summer vacations," "summer vacations 1899," "school year 1899" on google and no luck, so I was hoping someone might know this. I'm helping a friend with his book, and he has a flashback of sorts written featuring a boy getting exciting about his summer vacation and going on from there. The scene is set in 1899, West Virginia. In that timeframe and in that state, while I knew breaks existed, were there summer vacations and how long were they?

Thanks for any help.