1970Final resultsIncumbent defeated
1970 Democratic primary for Maryland Legislative District 13A
Maryland State Senate · Maryland
John C. Coolahan (D) won with 43.3% of the vote, defeating Harry J. Connolly Sr. (D) by 9.1 points.
John C. CoolahanDemocrat · winner
43.3%5,153
Harry J. Connolly Sr.Democrat · incumbent
34.2%4,070
Howard L. Muhl Jr.Democrat
19.2%2,291
William Franklin GosnellDemocrat
3.3%394
11,908 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The candidates
John C. Coolahan (D)Harry J. Connolly Sr. (D)Howard L. Muhl Jr. (D)
Also on the ballot: William Franklin Gosnell (Democrat), 3.3%