The Founders' Constitution
Volume 5, Amendments V and VI, Document 4
http://press-pubs.uchicago.edu/founders/documents/amendV-VI_criminal_processs4.html
The University of Chicago Press
Amendments V and VI
Document 4
Bill of Rights, sec. 11
1 W. & M., 2d sess., c. 2 , 16 Dec. 1689
11. That jurors ought to be duly impanelled and returned, and jurors which pass upon men in trials for high treason ought to be freeholders.
The Founders' Constitution
Volume 5, Amendments V and VI, Document 4
http://press-pubs.uchicago.edu/founders/documents/amendV-VI_criminal_processs4.html
The University of Chicago Press