Bridgeport, Ohio

The same ground, surveyed 78 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1908 1986

Buildings and businesses the archive holds for this place. Each opens its own page, with the source record it came from.

On the National Register within a mile 2 records

The National Register names another town for these. They stand within one mile of this settlement's coordinate.

• Market Squarelisted 1975 · 0.3 miles away
• Jacob's Churchlisted 1990 · 0.5 miles away

Matched by testing this settlement's coordinate against the published boundary of every sheet in the United States Geological Survey's historical collection. Each opens the scanned sheet at the Survey.

• 1908 USGS Miamisburg quadrangle1:62500
• 1953 USGS Cincinnati quadrangle1:250000, 3 printings
• 1955 USGS Miamisburg quadrangle1:24000, 2 printings
• 1957 USGS Cincinnati quadrangle1:250000
• 1965 USGS Miamisburg quadrangle1:24000, 4 printings
• 1986 USGS Dayton quadrangle1:100000, 2 printings

The History of Montgomery County, Ohio, Containing a History of the County;, published 1882 has no passage naming this settlement, which was common for smaller places. Its township is covered in full.

Regional context, not property-specific evidence. Museums hold 360 specimens collected within 10 miles of Bridgeport between 1835 and 1975: 226 Animalia, 68 Plantae, 58 Fungi, 4 Chromista, 3 Protozoa, 1 Unrecorded. 12 distinct Species records are shown. Collected by ?, A JOHN, A JOHN AND W E DUELLMAN and others. Each is a physical object with a catalogue number, and each entry opens the museum's record. This is what was collected and kept, not a survey of what lives here - nothing can be concluded from a species being absent.

Image	Species	Year	Collected by	Where, as recorded
	Hypericum mutilum subsp. mutilum	1835	Joseph C. Frank	Germantown
	Ambrosia artemisiifolia L.	1881	Foerste AF
	Geaster limbatus Fr.	1883	A. E. Foeerste	Dayton
	Platanthera leucophaea (Nutt.) Lindl.	1836	C. W. Short	Dayton
	Hydrophyllum macrophyllum Nutt.	1838	J. W. Van Cleve	Dayton
	Iris versicolor L.	1839	not recorded	Dayton. 2 mi. south
	Potentilla canadensis L.	1839	not recorded	Dayton. 1 mile south.
	Mertensia virginica (L.) Pers. ex Link	1855	Buchanan, R.	Dayton
	Anisothecium varium (Hedw.) Mitt.	1877	H. J. Biddlecome
	Barbula unguiculata Hedw.	1877	H. J. Biddlecome
	Carex amphibola Steud.	1877	A. P. Morgan & L. V. Morgan	Dayton
	Carex suberecta (Olney) Britton	1877	A. P. Morgan & L. V. Morgan	Dayton

All 360 specimens within 10 miles, at the Global Biodiversity Information Facility.

Regional context, not property-specific evidence. The federal mineral resources record lists 10 workings within 5 miles of Bridgeport: 8 producers, 2 past producers. 8 still produce. What was taken out: Sand and Gravel, Construction. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Every working recorded in Montgomery County

The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.

This settlement is recorded in the Geographic Names Information System as feature 1067276. The sheet list is computed by point-in-boundary test against the United States Geological Survey's historical topographic inventory. Both are works of the United States government and carry no copyright under 17 U.S.C. 105.

Specimens. Global Biodiversity Information Facility (GBIF), https://www.gbif.org/. Only records licensed CC0 or CC BY are used. Records licensed CC BY-NC are excluded because this site carries advertising. Images are checked individually and any whose licence is non-commercial, no-derivatives or unreadable is refused.

Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.