Harford County(204) ► ADJACENT TO HARFORD COUNTY Baltimore County(335) ► Cecil County(184) ► Kent County(101) ► Lancaster County, Pennsylvania(547) ► York County, Pennsylvania(438) ►
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Surveyed as “Prospect ye 29th August 1705 for Thomas Preston.” Named changed to “Olney” in 1810 by Mrs. John Norris, an admirer of Cowper, the poet, and his friend the Reverend John Newton, who lived at Olney, England. — — Map (db m1257) HM
On July 6, 1864, Confederate cavalrymen crossed the Potomac River into Maryland as part of a 12,000 man force under Gen. Jubal A. Early, who planned to attack lightly defended Washington, D.C., and draw off part of the Union army menacing Richmond . . . — — Map (db m176413) HM
On July 10, 1864, Major Harry Gilmor’s Confederate cavalry camped in this building (an old stage coach headquarters) on his way to burn the Pennsylvania R. R. bridge across the Gunpowder, where he captured General W. B. Franklin. — — Map (db m196723) HM
County seat of Baltimore County from 1712 to 1768. Once a rival of Baltimore, an important point for shipping tobacco and a Port of Entry. Benjamin Rumsey, first Chief Judge of the Court of Appeals, lived here. — — Map (db m152188) HM
The colonial home of Benjamin Rumsey, influential landowner and member of the First American Continental Congress. Erected in 1720-24 with bricks imported from England. It remains an outstanding example of Colonial Georgian architecture. — — Map (db m152248) HM
