| 1956 | US | Nightingale-Conant Corporation EN 1002First yearLP, 10" | LP, 10" |
| 1956 | US | Nightingale-McHugh Company G8OL-7039First yearLP, 10" | LP, 10" |
| 1956 | US | Nightingale-Conant Corporation EN-1001First yearLP, 10" | LP, 10" |
| 1956 | US | Not On LabelFirst yearLP, 10" | LP, 10" |
| 1956 | US | Nightingale-McHugh Company H8OL-0185 / Nightingale-McHugh Company H8OL-0186First yearLP, 10", Album | LP, 10", Album |
| 1956 | US | Nightingale-McHugh Company H8OL-0185 / Nightingale-McHugh Company H8OL-0186First yearLP, 10", Album | LP, 10", Album |
| 1958 | US | Success Motivation Institute, Inc.LP | LP |
| 1958 | US | A.S.T.R.A., Inc. AS-1002, XCTV-63270LP | LP |
| 1958 | US | Nightingale-Conant CorporationLP | LP |
| 1958 | US | Nightingale-Conant CorporationLP, Mono · Mono | LP, Mono · Mono |
| 1958 | US | Success Motivation Institute, Inc.LP, 10" | LP, 10" |
| 1958 | US | Nightingale-Conant Corporation CTV 10092LP, 10" | LP, 10" |
| 1958 | US | Nightingale-Conant CorporationLP, 10", Mono · Mono | LP, 10", Mono · Mono |
| 1958 | US | Earl Nightingale RecordingsLP, 10" | LP, 10" |
| 1958 | US | Nightingale-Conant Corporation EN-1002LP, 10" | LP, 10" |
| 1958 | US | Nightingale-Conant Corporation EN-1002LP, 10" | LP, 10" |
| 1958 | US | Nightingale-Conant Corporation EN-1002LP, 10" | LP, 10" |