Looking for the names of teachers at the Filer Corners school I came upon this note from F. T. Jarvis. His recollections contain some errors. The crime took place in the Town of Burlington, not Butternuts. I was able to find an account of the trial at Cornell University [ https://digital.library.cornell.edu/catalog/sat0203] and attached it below.
The Morris Chronicle offered a prize for the best history of the Butternut Valley written by a student. You can read the result as it appeared in the March 26, 1890 edition of the paper.'