Our church housed, educated and funded the return of the people from Sierra Leon that were on the Amistad. Check out our website from more historical background; https://www.firstchurch1652.org/amistad-mende
I believe next year is the 175th anniversary. I might just borrow your great idea and do a lesson for the church school kids on the anniversary.
The Farmington Historical Society https://fhs-ct.org/