** Just know that this is somewhat of an outline. I cannot do all the work since it may sound inconsistent with your writing style. Before just typing in anything without thinking, make sure to read it. I didn't pay attention to the tenses so you may have to fix it. Since it is a memorandum, you don't have to worry about it being a page long unless that is what is required. **
memorandum
To: [audience]
From: [colonist name]
Date: [date somewhere around 1692-1693 or you could do it later to show the aftermath]
Subject: Salem Witch Trials
Salem Village, located in [which colony], is under mass hysteria as some colonist experience signs of witchcraft. [write about something you were doing when you received the news]. It was then I heard from my neighbors that Bridget Bishop was being tried for [go online and find what she did]. Eventually news travelled along that she is found guilty and was to be publicly hung.
I saw [what did you see during the hanging]. I became more aware of what was happening around me and I became more careful. I didn’t think there would be another trial until two more people were accused recently in the village. [describe briefly the trial and what happened and how you felt]. I then decided it was time for me to move [explain why and what you plan to do]
[conclusion]