Supreme Court of Pennsylvania / Joined 1962 / Served to 1983

Henry X. O'Brien

Justice, Supreme Court of Pennsylvania

Henry X. O'Brien was a Justice of the Supreme Court of Pennsylvania, who joined the court in 1962. Opinions & record ↓ Sources ↓

Lived
1903–1990
Tenure
1962–1983 · 21 yrs

Judicial service

YearCourtAppointed byVote
1962Supreme Court of Pennsylvania

Education

Duquesne University
Gannon University
Saint Francis Medical Center College of Nursing

Judicial Record

In our data, O'Brien authored 657 published opinions for the court (1962–1982), plus 19 dissents and 4 concurrences. Most cited: Commonwealth v. McClendon (771 citations).

Published, precedential opinions from the CourtListener corpus. Counts and rankings are objective and recomputable: how we count. We describe the record, not the judge. 680 of these were attributed to O'Brien by a unique court-, date-, and surname-match against our roster (marked ), because CourtListener recorded no author for them. Each links to the official text to verify. How we match.

Selected opinions

YearCaseCitationCited
1981Commonwealth v. McClendon· Dissent434 A.2d 1185771
1978Mayle v. Pennsylvania Department of Highways· Dissent388 A.2d 709385
1981Laudenberger v. Port Auth. of Allegheny436 A.2d 147296
1963Chambers v. Montgomery411 Pa. 339229
1968Commonwealth Ex Rel. Butler v. Rundle429 Pa. 141222
1979Commonwealth v. DeJohn403 A.2d 1283216
1975Singer v. Sheppard· Dissent346 A.2d 897206
1982Commonwealth v. Stanley· Dissent446 A.2d 583192
1968Harleysville Mutual Casualty Co. v. Blumling429 Pa. 389172
1975Commonwealth v. McCutchen343 A.2d 669165
1981Anthony v. Koppers Co., Inc.· Dissent436 A.2d 181145
1970Commonwealth Ex Rel. Smith v. Myers438 Pa. 218143
1981Commonwealth v. Nazarovitch436 A.2d 170141
1975Commonwealth v. Triplett341 A.2d 62139
1974Commonwealth v. Demmitt456 Pa. 475139

Showing the 15 most-cited of 680 authored opinions in our data. “Cited” is inbound citations across the CourtListener corpus. Case links open the ruling’s full text (CourtListener) or its page here; read the methodology and verify against the primary source.

Questions & answers

How do judges of the Supreme Court of Pennsylvania reach the bench?
The court's current selection method is partisan election.
Which court was Henry X. O'Brien on?
Henry X. O'Brien was a Justice of the Supreme Court of Pennsylvania.

Sources

Each fact on this page traces to a primary public record.

How we source & reconcile data → Data & Sources

See something wrong? Report an error. Fixes are logged in the corrections log.

21 years on the Supreme Court of Pennsylvania. Data as of 2026-03-31. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).