Who was george mason?

George Mason participated in the American revolution and was an American Patriot who was also a part of the constitutional convention and was one of the member who signed the Bill of rights.

Explanation:

He was also a well known planter and a very powerful and influential politician.

He was a delegate of the constitution and he was one of the three members who denied to sign the constitution.

He was concerned with the constitution's decision to not end slavery and so he didn't sign it.