Maryland State Senate seat · former district
Maryland Legislative District 13A
1 elections since 1970: Democrats won 1, Republicans 0.
1970 election
Nov 3, 1970- John C. Coolahan (D) · won58.9%
- H. Allen Mezger (R)41.1%
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
Every election for this seat
1 race since 1970.
| Year | Winner | Runner-up | Won by |
|---|---|---|---|
| 1970 | John C. Coolahan (D) | H. Allen Mezger (R) | 17.7 |
Primaries: 1970 Democratic primary
Won by: the winner's lead over the runner-up, in points of the vote. Source: 99chambers results archive (MEDSL, Klarner, state election offices)