I read this post eight months ago but didn’t know the answer.
I did think it had something to do with Dartmoor Prison but wasn’t sure what.
Anyway this last week its been bugging me and with the help of a BBC website i think i have it. On the 18th june 1812 the Americans declared war on the UK, making it the 200th anniversary. And the American POW’s were sent to Dartmoor Prison.
But what’s the connection to Lonnie Doneghan?