This is generally True.
This is because the stories were orally presented and each Scope had a way of telling them that was unique, and also they changed it themselves since it was impossible to recreate everything exactly the same in two different presentations.
One main reason was because he was such a respectful figure. John Adams would have written it but when the delegates were deciding who should write it, they picked Jefferson because he excelled over Adams in writing.
The sternum
the breastbone
the flat bone
