The story
All are named after the Marquess of Rockingham.
Etymology from Wiktionary, CC BY-SA 4.0.
Rockingham County
Rock·ing·ham Coun·tyToday it means: One of 10 counties in New Hampshire, United States. County seat: Brentwood. Full definition →
Today it means: One of 10 counties in New Hampshire, United States. County seat: Brentwood. Full definition →
All are named after the Marquess of Rockingham.
Etymology from Wiktionary, CC BY-SA 4.0.