Thomas McKean
Clark signed this document witnessing that Reuben Haines, a Brewer from Philadelphia, and Samuel Wetherill, Jr., a Clothier of the same city, will be held for 500 pounds each under the condition that they "appear and answer" charges of treason. The document seems to be addressed to Thomas Clark, merchant, who may have been the guarantor for the sum; the verso of the document identifies it as a "Recognizance." The document was probably signed during the period in which McKean served as chief justice of Pennsylvania (1777-1799).
A delegate to the Continental Congress and a ratifier of the Constitution, McKean was active in the politics of the Early Republic in both Delaware and Pennsylvania-- where he served as governor from 1799-1808.
Thomas McKean (1734-1817).
[Legal document] 1778 September 2 [to] Thomas Clark / Thomas McKean.
Lehigh University Catalog Record: https://asa.lib.lehigh.edu/asa/Record/10553072
This text has been digitized and is available through the Lehigh Preserve digital repository.

