Which signer was missing from the 1777 Goddard broadside's printed list?

The signer missing from the 1777 Goddard broadside’s printed list was Thomas McKean.

Congress commissioned Mary Katharine Goddard to print an authenticated Declaration for distribution to the states. Her broadside was the first widely circulated printed version to identify the people who had signed the document, but McKean’s name was absent.

McKean was a Delaware delegate and an eventual signer of the Declaration. His omission is generally understood to indicate that he had not yet added his name to the engrossed document when the broadside was prepared, or that his signing occurred later than the others.

This question can cause confusion because the Declaration had 56 signers, while the Goddard broadside did not provide a perfectly complete list. Congress secretary Charles Thomson was also not a signer, so his absence is not the same kind of omission. Among the listed answer choices, McKean is the canonical answer.