While stationed at Fort Ticonderoga, he befriended William Irvine who was an officer in the Continental Army.
Upon nearing the destination of the campaign, Rose was selected to lead an advance company of men to scout the area ahead and attempt to determine the location of the enemy.
Rose led the company in a fighting retreat while sending back runners to alert the main army that they had engaged the Indian force.
A large body of men remained together under the leadership of Col David Williamson and Major Rose.
The following day, Rose was again selected to lead an advance company to scout the terrain ahead.
A family member later sent a copy to the Pennsylvania Historical Society giving Americans an excellent account of the campaign.