Oddly enough there are apparently at least a couple of versions of this and Thomas Jefferson wasn’t happy with the eventual one :

Thomas Jefferson was so upset with the Contnental Congress’s editing of his original Declaration of Independence that for years afterwards he sent copies of both the original and the final versions to friends and asked their opinions as towhich version they preferred.

Source : Page 141, Isaac Asimov’s Book of Facts’, Isaac Asimov, Grosset & Dunlap,1979.

Wonder what there might be hidden on Jefferson’s original!

Incidentally, whilst on matters constitutional, what a difference a comma can make! :

“Neither slavery nor involuntary servitude, unless for the punishment of crime, shall ever be tolerated in this state.” Thus read the state of Michigan’s constitution in 1850. Inadvertantly, it legalised slavery as an appropriate punishment for crime. Not until 1963 was the comma shifted from its position after servitude to a position after slavery, and slavery was once again outlawed in the state.

Source : Page 198, Isaac Asimov’s Book of Facts’, Isaac Asimov, Grosset & Dunlap,1979.

Elsewhere from there – lost page number, sorry – apparently Ben Franklin (I think?) was barred from writing the Declaration of Independence because it was feared that he’d include a joke in it! Seriously!