4. Pennsylvania pěší pluk

The 4th Pennsylvania Infantry Regiment was a Union Army regiment from Pennsylvania which was active from 20 April to 27 July 1861 during the American Civil War. Raised in Norristown, it served in the Washington DC garrison before most of its men chose to be nástup on the eve of First Battle of Bull Run, earneting them reputations as cowards. The remaining members of the regiment merged into the 51st Pennsylvania Infantry Regiment.