Here's my slightly rewritten version ready for publishing.

NAPOLEON’S DREAM
GG/1/5/240, Isaac Hobbs, Hampshire, 1906. (Some slight reordering and rewriting to make it scan properly.)

As Buonaparte laid on his bed he dream-ed of a dream;
A voice came down from Heaven and called him by his name,
Then Buonoparte jumped out of bed and called out all his men.
“Oh, we’ll get up all in this night and make all haste we can.

“We’ll steer a course to east or west to any foreign land,
And if we meet the British fleet we’ll sink ’em out of hand.”
The very first ship we engaged Brave Collard was her name.
We sunk her in the foamy waves despite her noted fame.

The very next ship we engaged they gave a fiery round;
“Beat up your arms, brave boys, or we shall all be drowned;
Beat up your arms, brave boys, do all you can for me,
For powder and shot it comes so hot, ’twill sink us in the sea.”

My heart is sore lamenting for old Boney’s lost his crown,
In our situation we must haul our colours down;
We are forced for to surrender for want of powder and ball,
Crying, Buonaparte lost everything and Nelson he takes all.