Derby, Ohio

The same ground, surveyed 63 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1923 1986

Derby fell from 408 to 355 between 2010 and 2020. These are the recorded population figures Wikidata holds for this place, reached through the Geographic Names Information System number this page is keyed on rather than by name, so they belong to this place and not to another of the same name. Most are census counts, but not all are: an early figure may be a founding or settlement estimate, and an estimate published within five years of a census is left out. The change column is computed, and is left blank where more than 20 years separate a figure from the one before it, because a gap that long is not a change between two counts.

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.

• 1923 USGS West Columbus quadrangle1:62500
• 1925 USGS West Columbus quadrangle1:62500
• 1947 USGS Columbus quadrangle1:250000
• 1955 USGS Harrisburg quadrangle1:24000
• 1961 USGS Columbus quadrangle1:250000
• 1962 USGS Columbus quadrangle1:250000
• 1966 USGS Harrisburg quadrangle1:24000, 3 printings
• 1967 USGS Columbus quadrangle1:250000, 2 printings
• 1986 USGS Springfield quadrangle1:100000, 2 printings

HISTORY OF PICKAWAY COUNTY, OHIO AND REPERESENTATIVE CITIZENS, published 1906 names this settlement in its chapter on Darby Township. These are the passages that mention it, exactly as the scans read.

Regional context, not property-specific evidence. Museums hold 595 specimens collected within 10 miles of Derby between 1901 and 1975: 571 Animalia, 23 Plantae, 1 Fungi. 12 distinct Species records are shown. Collected by Abbott, R; and others, Abbott, R; vonder Heyden, Jonna, Bartley, F. 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
	Asclepias quadrifolia Jacq.	1901	C. S. Mead	Big Darby Creek
	Lenzites betulinus (L.) Fr.	1902	Kellerman, W.A.	Big Darby
	Ambystoma tigrinum (Green, 1825)	1932	not recorded	Darbyville, Pickaway Co., Ohio
	Hyla versicolor LeConte, 1825	1932	Walker, C. F. (Charles F.) & Trautman, M. B. (Milton Bernard)	Darbyville, Pickaway Co., Ohio
	Ruellia humilis Nutt.	1935	Delzie Demaree	John Bryan State Park, Yellow Springs
	Campostoma anomalum anomalum	1939	Trautman, M. B. (Milton Bernard)	Big Darby Creek,~2.6 miles dst SR 316, ~2 miles SSE of Darbyville OH, Muhlenberg Township
	Cyprinella whipplei Girard, 1856	1939	Trautman, M. B. (Milton Bernard)	Big Darby Creek,~2.6 miles dst SR 316, ~2 miles SSE of Darbyville OH, Muhlenberg Township
	Etheostoma blennioides Rafinesque, 1819	1939	Trautman, M. B. (Milton Bernard)	Big Darby Creek,~2.6 miles dst SR 316, ~2 miles SSE of Darbyville OH, Muhlenberg Township
	Etheostoma caeruleum Storer, 1845	1939	Trautman, M. B. (Milton Bernard)	Big Darby Creek,~2.6 miles dst SR 316, ~2 miles SSE of Darbyville OH, Muhlenberg Township
	Anguilla rostrata (Lesueur, 1817)	1949	Nibling, M. F. (Mary F.)	Big Darby Creek, within Darby township, near Orient, Darby township
	Alasmidonta marginata Say, 1818	1975	Abbott, R; vonder Heyden, Jonna	Darby Creek
	Amblema plicata (Say, 1817)	1975	Abbott, R; vonder Heyden, Jonna	Darby Creek

All 595 specimens within 10 miles, at the Global Biodiversity Information Facility.

Regional context, not property-specific evidence. The federal mineral resources record lists 2 workings within 5 miles of Derby: 2 past producers. None of them still produces. 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 Pickaway County

Regional context, not property-specific evidence. The National Weather Service names Derby in 5 storm reports between 1996 and 2021: 3 thunderstorm wind, 1 heavy rain, 1 flood. No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.

Every storm recorded in Pickaway County

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

Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.

This settlement is recorded in the Geographic Names Information System as feature 1064533. 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.

Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.