The Park School in Amherst has released a report into faculty misconduct allegations of former students, parents and staff.
The alleged incidents, according to the school took place between the 1950's and 2000's.
The investigation follows notifications from two other schools, along with claims made by two alumni. Some of the behavior was sexual in nature, the school said.
Two of the four teachers connected to the investigation are believed to be dead, while two others are no longer teaching.
None of the reports involved allegations of misconduct by a current employee or administrator.
The school worked with Hodgson Russ LLP in the investigation.
You can view the report here. WARNING - the report includes explicit content.