On July 8th, 1776, the citizens of PA voted for delegates to frame a new state government. The new government was necessary after PA delegates at the Provincial Conference earlier voted to go to war with Great Britain. The White Horse served as the polling place for Chester County’s district #3, putting the tavern location central to Chester County’s support for our new nation’s birth. Interestingly, the rumor of the tavern hosting one of the first public readings of the Declaration of Independence around the same time is entirely possible, but to date, I have not found any direct evidence.
–Journals of the House of Representatives with Proceedings of the Several Committees and Conventions — p 39.