We've always been led to believe that our Meyers ancestors were Dutch and came from Heligoland.
As far as I can determine, Heligoland was never a Dutch possesion, rather it was originally Danish, then British then finally German.
My earliest traceable Meyers was Archibald Meyre who gives his place of birth on the 1841 and 1851 census as "Scotland", c.1815. Searching Scotland's People appears to give no result for this name and date, although there is an Arch Meier, b. Govan 1805.....!
The family owned shops in Carlisle and there was some "unpleasantness" outside in the street, around the time of WW1 with a rabble accusing them of being Germans, which was refuted by the family who insisted they were Dutch (maybe out of self-preservation!).
Police and military officials called at one of the shops to take my G-Grandfather, Edward Meyers, into custody to be interned. My G-grandmother gave them short shrift and advised they take the matter up with Edward himself - in Richardson Road Cemetary, where he had been laid to rest a few years earlier!