 Plunketts Creek is named for Colonel William Plunkett , a physician , who was the first president judge of Northumberland County after it was formed in 1772 . During conflicts with Native Americans , he treated wounded settlers and fought the natives . Plunkett led a Pennsylvania expedition in the <unk> @-@ Yankee War to forcibly remove settlers from Connecticut , who had claimed and settled on lands also claimed by Pennsylvania . For his services , Plunkett was granted six tracts of land totaling 1 @,@ 978 acres ( 8 @.@ 00 km2 ) on November 14 , 1776 , although the land was not actually surveyed until September 1783 . Plunkett 's land included the creek 's mouth , so Plunketts Creek was given his name . 
