I'm a bit late to the party but here's my interpretation of Wyyt's 12 nations idea with Pennsylvania:
A1: Commonwealth of Pennsylvania
OTL Pennsylvania
A2: Republic of Pennsylvania (1792)
Delaware and Pennsylvania had mutual desire to remain one territory after the dissolution of the United States in 1790; Pennsylvania wanted to retain a coast on the Atlantic Ocean, and Delware did not want to be annexed by the Catholic-dominated Maryland.
A3: Province of Pennsylvania (1800)
British Pennsylvania with maximum colonial claims
A4: United States of America (1791)
Despite gaining an additional victory against the British in the form of a border on the Nipissing line, the failure of the Articles of Confederation resulted in its opponents declaring independence in the most of the southern states. Plans for a new capital on the banks of the Potomac were thrown out and instead Lancaster, Pennsylvania was chosen as the northern nation's capital.
B1: Reichskommissariat Pennsylvanien (1949)
After the atomic annihilation of New York City and the total occupation of the United States by Axis forces, the German heritage of Pennsylvania led it to become the Reich's darling American territory. Pennsylvania was "gifted" territory from New Jersey after it was deemed purged of undesirables, and enjoys some degree of autonomy compared to the other Reichskommissariats. In certain circles, it is stated that the Reich's war machine is "powered by Pennsylvania steel and Texas oil."
B2: Westsylvania (1777)
The push for statehood of western Pennsylvania and Virginia was successful, and Westsylvania became the 14th state in the union with its capital in Wheeling.
B3: Republic of Allegheny (1868)
With the Confederate States victory in the War of Northern Aggression, Allegheny and New England were the next nations to declare independence from the Union. Allegheny maintains a friendly relationship with the British, who wished to distance themselves from the Confederacy.
B4: Pennsilfaani (1801)
The Pennsylvania Dutch managed to found their own country in the New World
C1: Pennsylvania Worker's Republic (1938)
An autonomous republic in the United Socialist States of America, founded after the Treaty of Chicago formally ended the Second American Revolution. It is regarded as one of the harshest republics within the USSA, with dissenters often forced into coal mine work camps.
C2: Free States of America (1855)
Already at odds with the greater number of slave states following the statehood of Sonora and Rio Grande, the introduction of a bill to permanently enshrine slavery in the Constitution finally pushed several northern states to secede. Northern industry meant a swift push to Washington and a quick end to the Civil War.
C3: The Pitt (2281)
With the Lone Wanderer's morally questionable choice to keep Ashur in power and continue forced labor within The Pitt, they allowed the city a chance to cure the contagion. In 2278, every laborer was declared a free man and The Pitt finally had its chance to expand. By 2281, Ashur's territory stretches from the ruins of Pittsburgh to Monroeville, and there are already whispers of a potential conflict with the Brotherhood of Steel.
C4: State of Westmoreland (1808)
The 1782 Decree of Trenton ruled in Connecticut's favor, with Westmoreland later voting to secede and become an independent state in 1808.
D1: Philadelphia, District of Columbia (1790)
Philadelphia was the obvious choice for the nation's capital, and its historical significance to the United States convinced the southern states to accept a northern city.
D2: Keystone Republic (1932)
Born out of the instability of the Great Depression, the Keystone Republic was a short lived movement styled after Benito Mussolini's March on Rome. Their own "March on Harrisburg" succeeded in controlling the state capital for five days before being suppressed by the 28th Infantry Division.
D3: Pennsylvanian Free State (1944)
Charles Lindbergh's isolationist policies may have won him the presidency, but it was his "fight the enemy within" initiatives that became his downfall. While groups sympathetic to the Allied cause were seen as heroes for ending the short civil war by parading Lindbergh's corpse through Washington, their proclamation of a Marxist people's state only further fueled the national turmoil. During the Pennsylvanian Free State's brief existence, it was primarily made up of Republican forces opposed to Fascist or Communist sympathetic groups and fought to restore the United States under its rightful democratic government.
D4: United Soviets of Pennsylvania (1923)
The Battle of Blair Mountain saw an explosion in workers' uprisings across the country, the most successful of which was the United Soviets of Pennsylvania. Originating in Pittsburgh, revolutionaries managed to seize much of the Pennsylvanian countryside before overthrowing the state legislature and establishing worker's councils based on those formed during the Russian Revolution.