As of June 1st, 2021, the Princeton Public Library will resume charging for printing, copying, faxing, and laminating. The library suspended the practice of charging for services as a way to acknowledge and off-set the difficulties of the pandemic in the community. After a year of stressful unpredictability, and in light of the availability of a vaccine, the library is moving another step closer to pre-pandemic normalcy.
For the foreseeable future, based on CDC recommendations, everyone entering the building will continue to be asked to maintain social distancing standards and wear face masks. The board continues to prioritize the safety of the staff and the community above all other concerns.
princetonpl.org 
I would like to know if you have any exhibits or articles on the one room school house Hopkins in Princeton Township Illinois
We have clippings binders in our Local History Room, including one on Bureau County schools. In that binder, I found a photocopy of a photograph of Hopkins School (this was taken from a personal collection that was donated to the library–unfortunately we do not have the original photographs, though the photocopy is fairly clear) and a copy of the 1921-22 Bureau County Schools directory that lists the teacher and school board for Hopkins for that year.
I didn’t find anything more on Hopkins, but I have forwarded your question to our Local History librarians in case they know of other resources in the collection. — Ron McCutchan, Princeton Public Library