Lawrence County, Pennsylvania is located in Western Pa and was created on March 20, 1849. It was named after the USS
Lawrence, Oliver Hazard Perry's original flagship at the at the Battle of Lake Erie during the War of 1812.
The following is the history of Pa county territories which was formed and reformed and lead to the formation of Lawrence County.
Chester County is one of the first three original counties of the province. Chester, Philadelphia, and Bucks were
the three original Pennsylvania counties created by William Penn on August 24, 1682.
It is named for Cheshire, England.
Lancaster County was part of Chester County, Pennsylvania until May 10, 1729, when it became the fourth county in the state.
Lancaster is named after the city in England.
The General Assembly (legislature) of the Pennsylvania colony on January 27, 1750, created
Cumberland County from Lancaster County, Pennsylvania, naming it for Cumberland, England.
Bedford County was created on March 9, 1771 from part of Cumberland County and named in
honor of Fort Bedford in Raystown.
Westmoreland was formed from part of Bedford County on February 26, 1773, and was the first county in the colony of
Pennsylvania west of the Allegheny Mountains.
Allegheny County was officially created on September 24, 1788, from parts of Washington and
Westmoreland counties.
Allegheny County was the first in Pennsylvania to be given a Native American name, being named
after the Allegheny River. The word "Allegheny" is of Lenape origin, with uncertain meaning.
It is usually said to mean "fine river", but sometimes said to refer to an ancient mythical
tribe called "Allegewi" who lived along the river long ago before being destroyed by the Lenape.
Beaver County was created on March 12, 1800, from parts of Allegheny and Washington Counties.
Beaver is named for the Beaver River, a tributary of the Ohio River in Pennsylvania.
Mercer County is one of the range contiguous to the western boundary of the state. It was taken from Allegheny co. by the
act of 12th March, 1800. Length 32 ms., breadth 26 ; area 765 sq. ms. Population in 1800, 3,228; in 1810, 8,277; in
1820, 11,681; in 1830, 19,729; in 1840, 32,873.
Lawrence County was formed from parts of Beaver and Mercer, April 5, 1849.
