
Industrial developments and river commerce along the Delaware River define this mid-century landscape at the meeting point of Pennsylvania, Delaware, and New Jersey. Heavy infrastructure for the Reading RR, Pennsylvania RR, and Baltimore and Ohio RR lines corridors through established riverside communities like Marcus Hook and Chester. The dense urban grid of Claymont and Upland stands in contrast to the marshy lowlands of the U S Military Reservation and Raccoon Island across the water in New Jersey. Local life is documented through numerous institutions, from the St Patricks Monastery near Holly Oak to various family-named schools such as Francis Green Sch. This survey also records the vital maritime presence of the U S Quarantine Sta and multiple shore-side markers that once guided traffic through the busy tri-state channel.
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