Subject Count
Pennsylvania -- Lebanon 11
Pennsylvania -- Lebanon County 36
Pennsylvania -- Lebanon Metropolitan Area 10
Pennsylvania ledger 1
Pennsylvania -- Leechburg 2
Pennsylvania -- Leesport 1
Pennsylvania. Legislature
Pennsylvania -- Lehigh Canal 3
Pennsylvania -- Lehigh County 26
Pennsylvania -- Lehigh River 3
Pennsylvania -- Lehigh River Valley 22
Pennsylvania -- Lehighton 1
Pennsylvania -- Levittown 5
Pennsylvania -- Lewisburg 4
Pennsylvania -- Lewistown (Mifflin County) 4
Pennsylvania -- Liberty 1
Pennsylvania -- Ligonier 3
Pennsylvania Limited Suffrage League 1
Pennsylvania -- Lincoln Highway Heritage Corridor 1
Pennsylvania -- Line Lexington 1
Pennsylvania -- Linesville 2
Pennsylvania -- Lititz 4
Pennsylvania. Loan Office, General
Pennsylvania -- Lock Haven 4
Pennsylvania -- Londonderry (Chester County : Township) 1
Pennsylvania -- Lower Burrell 1
Pennsylvania -- Lower Merion (Township) 2
Pennsylvania -- Luzerne County 34
Pennsylvania -- Lycoming County 28
Pennsylvania -- Mahantongo Creek 1
Pennsylvania -- Mahoning Creek Lake Region 1
Pennsylvania -- Main Line 5
Pennsylvania -- Malvern 1
Pennsylvania -- Malvern -- Duffy's Cut Site 1
Pennsylvania -- Manheim 1
Pennsylvania Manufacturers' Association 1
Pennsylvania -- Manufactures 14
Pennsylvania -- Manufactures -- Statistics 3
Pennsylvania -- Manufacturing 1
Pennsylvania -- Maps 171
Pennsylvania -- Maps -- Bibliography -- Catalogs 3
Pennsylvania -- Maps -- Databases 1
Pennsylvania -- Maps -- Early works to 1800 6
Pennsylvania -- Maps -- Early works to 1800 -- Facsimiles 2
Pennsylvania -- Maps -- Indexes 2
Pennsylvania -- Maps, Outline and base 8
Pennsylvania -- Maps, Physical 8
Pennsylvania -- Maps, Pictorial 2
Pennsylvania -- Maps -- To 1800 1
Pennsylvania -- Maps, Topographic 18
Pennsylvania -- Marple (Township) 2
Pennsylvania -- Marsh Creek (Tioga County) 1
Pennsylvania -- Martinsburg Formation 1
Pennsylvania -- Martinsburg Region 2
Pennsylvania -- Masontown 1
Pennsylvania -- Matamoras (Pike County) 2
Pennsylvania -- Mauch Chunk 6
Pennsylvania -- Maytown (Lancaster County) 3
Pennsylvania -- McConnellsburg 1
Pennsylvania -- McKean 2