Divided by Townships
Last Updated
Aug 2009
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MAP Evolution of Counties and Townships from Washington County, Pennsylvania
Page 53 showing James Cregg, possible relation to William Andersons wife
Page 189 showing Jacob Snuff (Schnorf)
Page 157 showing William Anderson
Page 01 Introduction, Amwell
Page 02 Amwell, East Bethlehem, West Bethlehem
Page 03 West Bethlehem, Cecil, Chartiers
Page 04 Chartiers, Cross Creek, Donegal (including present Buffalo)
Page 05 Donegal, Fallowfield, Pike Run (formed 1792 from Fallowfield)
Page 06 Fallowfield (Pike Run), Hanover
Page 07 Hopewell, Morris
Page 08 Morris, Nottingham
Page 09 Nottingham, Peters, Robinson, Smith
Page 10 Smith, Somerset
Page 11 Somerset, Strabane
Page 12 Strabane (Canton), Strabane (Washington Town)
Present Greene County--
Page 13 Cumberland
Page 14 Cumberland, Finley, Franklin, Greene
Page 15 Greene, Morgan
Page 16 Morgan, Richhill
Present Allegheny County--
Page 17 Maps: 1781, 1784, 1788/89, 1800 Division of Northern Washington Co., PA into Allegheny
and Beaver Counties
Page 18 Text: Portion of Allegheny County Taken From Washington County
Page 19 1789 Tax List and Allegheny Township Codes, Fayette
Page 20 Fayette, Moon (First), Moon (Second)
Page 21 Moon (Second), Mifflin, St. Clair
Page 22 St. Clair, Mifflin and St. Clair (Mixed)
Page 23 Mifflin and St. Clair (Mixed)
SOURCE: "The Keyhole" (Quarterly Publication of the Genealogical Society of Southwestern Pa.) Vol. XVI,
Nos. 1-4, 1988.