Having failed to leave for Holland from Boston, the Scrooby congregation finally left from Immingham. This memorial used to mark the spot, but it had to be moved with all the industrialisation of the area. It is now in Bluestone Lane, just before it turns right and becomes Church Lane.
I was told roughly where the Separatists left for Holland, but I was not able to find it as the area is now full of docks, power stations and chemical plants.