Jack L. Cooper
VERIFIED evidence grade of this record
First African American radio announcer and disc jockey ('undisputed patriarch of Black radio'); created The All-Negro Hour (debut Nov 3, 1929) and Search for Missing Persons (1938) on Chicago's WSBC; vaudeville performer and Chicago Defender columnist; inducted into the Radio Hall of Fame in 2012.
The record
- Also known as: Jack Leroy Cooper
Notes
RELP111 supporting: creator of focal practice CTL-E-1275. Distinct from existing CTL-E-1274 (the program entity 'Jack L. Cooper and The All-Negro Hour').
Relationships
- Chicago — based in
Cooper's radio career was based in Chicago (WSBC). - Memphis, Tennessee — from
Jack L. Cooper was born in Memphis, Tennessee in 1888. - Search for Missing Persons (radio program) — related to
Inverse of CTL-E-1275 related_to CTL-E-4803. - Search for Missing Persons launches (1938) — initiated
Cooper created the program; the 1938 launch event is his initiation. - WSBC — affiliated with
Cooper was host, producer, and announcer at WSBC.
Referenced by
- Chicago Defender — wrote for → this record
- Search for Missing Persons (radio program) — related to → this record
- The All-Negro Hour debuts (1929-11-03) — founded by → this record
- WSBC — hosted → this record
Sources
- Radio Hall of Fame - Jack L. Cooper
- USA Radio Museum - Making of a Pioneer: Jack Leroy Cooper
Record CTL-E-4803 · CultureTechLens Knowledge Graph · evidence grade: VERIFIED · 2 sources · 9 mapped relationships · CTL research: RELP-001.
Directory: all entity records · the knowledge graph
Cite this record
Chicago: CultureTechLens. “Jack L. Cooper (CTL-E-4803).” CultureTechLens Knowledge Graph. Chicago, IL: CultureTechLens, 2026. https://culturetechlens.com/graph/entities/ctl-e-4803/
APA: CultureTechLens. (2026). Jack L. Cooper (CTL-E-4803) [Entity record]. CultureTechLens Knowledge Graph. https://culturetechlens.com/graph/entities/ctl-e-4803/
MLA: CultureTechLens. “Jack L. Cooper (CTL-E-4803).” CultureTechLens Knowledge Graph, 2026, https://culturetechlens.com/graph/entities/ctl-e-4803/
Citation guidance for teachers, journalists, and funders: How to Cite Us.
From the Archive
The archive in pictures
The people, places, and institutions this work documents. Photographs from the CultureTechLens research record — rights-cleared, credited, and cited like everything else here.



Trust & evidence
Evidence before authority. CultureTechLens publishes its methods, its limits, and its corrections alongside its findings. Claims carry grades — VERIFIED, SUPPORTED, PROVISIONAL, DISPUTED, UNRESOLVED — and unknowns are never reported as zero.
Every claim graded. Every source named. Every correction public — see the corrections log.