1978Final results
1978 election for Pennsylvania House District 199
Pennsylvania House of Representatives · Pennsylvania
M. Joseph Rocks (R) won with 61.5% of the vote, defeating Edward A. Jennings (D) by 23.0 points.
M. Joseph RocksRepublican · winner
61.5%14,480
Edward A. JenningsDemocrat
38.5%9,060
23,540 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 1978
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET