Thomas Ambrose Masterson
Appointed by President Lyndon B. Johnson in 1967 and confirmed by voice vote, Thomas Ambrose Masterson was a Judge on the U.S. District Court for the Eastern District of Pennsylvania. He earned a law degree from University of Pennsylvania Law School (now Carey Law School) in 1952. Rulings & record ↓ Sources ↓
- Lived
- 1927–2000
- Appointed by
- Lyndon B. Johnson, 1967
- Confirmed
- by voice vote
- Education
- Harvard 1949 · University of Pennsylvania Law School (now Carey Law School) 1952
- Succeeded by
- Joseph Leo McGlynn Jr.
Federal judicial service
| Year | Court | Appointed by | Vote |
|---|---|---|---|
| 1967 | Eastern District of Pennsylvania | L.B. Johnson (D) | Voice vote |
Party letters show the appointing president’s party, not the judge’s own. A voice vote means the chamber approved aloud. No senator-by-senator tally is recorded.
Confirmation vote
Voice vote
The Senate approved this confirmation aloud, with no senator-by-senator tally recorded. Recorded roll-call votes begin in 1989.
Education
Judicial Record
In our data, Masterson authored 45 published opinions for the court (1967–1973). Most cited: Dorsey v. Yoder Company (84 citations).
A selective record from published opinions in the CourtListener corpus, not every ruling; most unpublished district orders are not included. Counts and rankings are objective and recomputable: how we count. We describe the record, not the judge.
Recent & notable rulings
| Year | Case | Citation | Cited |
|---|---|---|---|
| 1971 | Dorsey v. Yoder Company | 331 F. Supp. 753 | 84 |
| 1971 | United States v. Bruno | 333 F. Supp. 570 | 46 |
| 1973 | International Prisoners' Union v. Rizzo | 356 F. Supp. 806 | 40 |
| 1972 | United States Ex Rel. Neal v. Wolfe | 346 F. Supp. 569 | 39 |
| 1968 | Mercantile Financial Corp. v. Miller | 292 F. Supp. 797 | 36 |
| 1970 | Monsanto Company v. Rohm and Haas Company | 312 F. Supp. 778 | 35 |
| 1968 | Jenn-Air Products Co. v. Penn Ventilator, Inc. | 283 F. Supp. 591 | 35 |
| 1969 | Giordani v. Hoffmann | 295 F. Supp. 463 | 32 |
| 1968 | Fitzgerald v. Central Gulf Steamship Corp. | 292 F. Supp. 847 | 29 |
| 1973 | United States Ex Rel. Harrison v. Pace | 357 F. Supp. 354 | 27 |
| 1973 | Stern v. Massachusetts Indemnity and Life Insurance Co. | 365 F. Supp. 433 | 25 |
| 1972 | Alco Standard Corporation v. Benalal | 345 F. Supp. 14 | 24 |
| 1967 | Staskel v. Gardner | 274 F. Supp. 861 | 21 |
| 1971 | Kohn v. American Metal Climax, Inc. | 322 F. Supp. 1331 | 20 |
| 1968 | United States v. Clark | 289 F. Supp. 610 | 19 |
Showing the 15 most-cited of 45 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
- Who appointed Thomas Ambrose Masterson?
- President Lyndon B. Johnson appointed Thomas Ambrose Masterson to the U.S. District Court for the Eastern District of Pennsylvania in 1967.
- Was Thomas Ambrose Masterson appointed by a Democrat or a Republican?
- Thomas Ambrose Masterson was appointed by President Lyndon B. Johnson, a Democrat. JudicialFinder records the appointing president's party, not a judge's own politics.
- What was Thomas Ambrose Masterson's confirmation vote?
- Thomas Ambrose Masterson was confirmed by voice vote on June 12, 1967. No senator-by-senator tally was recorded.
- Which court was Thomas Ambrose Masterson on?
- Thomas Ambrose Masterson was a Judge on the U.S. District Court for the Eastern District of Pennsylvania.
Sources
Each fact on this page traces to a primary public record.
- FJC Biographical Directory
- Wikidata
- CourtListener bulk data (Free Law Project): authored opinions & citation counts
How we source & reconcile data → Data & Sources
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6 years on the U.S. District Court for the Eastern District of Pennsylvania. Data as of 2026-08-10. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).