[4] In the 1740s, a restaurant appellation, "Peggy Mullan's Red Hot Beef Steak Club" was added to the name of the tavern.

In 1756, Benjamin Franklin used the inn as a recruitment gathering point for the Pennsylvania militia as it prepared to fight Indian uprisings.

On November 10, 1775, the Second Continental Congress commissioned the innkeeper and former Quaker Samuel Nicholas to raise two battalions of Marines in Philadelphia.

The earliest Marines were deployed aboard Continental Congress Navy vessels as sharpshooters because they were typically recruited as outstanding marksmen.

[7] In homage to the likely 1775 Tun Tavern menu, the U.S. Marine Corps National Museum located in Quantico, Virginia, contains a Tun Tavern-themed restaurant, whose lunch menu includes beer and other fermented (alcoholic) beverages, peanut soup and bread pudding, the non-alcoholic recipe of which remains a traditional staple among some U.S. Marine food services to this day.