SNAP-3 Nuclear Power Demonstration
McCone joined AEC officials in demonstrating the SNAP-3 radioisotope power technology to President Eisenhower at the White House.
Role range: 1958-1961
Historical biography archive · Updated 2026-11-03
John Alexander McCone Biography and Timeline
Follow John Alexander McCone through 6 dated historical records for United States of America.
John Alexander McCone, historical timeline
A chronological timeline drawn from matching World History Database records.
6Distinct records
1 of 1Page
1959–1962Years on this page
1959
Test Moratorium Policy Review
McCone joined senior officials in reviewing the expiring nuclear test moratorium and negotiating guidance before President Eisenhower made a new policy decision.
Role range: 1958-1961
1960
Nuclear Testing Policy Discussion
McCone discussed the status of the test moratorium with President Eisenhower and reviewed technical questions with the Joint Committee on Atomic Energy.
Role range: 1958-1961
1961
AEC Chairmanship Concludes
McCone completed his service as Chairman of the Atomic Energy Commission at the end of the Eisenhower administration.
Role range: 1958-1961
1962
Eisenhower Missile Briefing
At Kennedy's request, McCone briefed former President Eisenhower on the Soviet buildup and showed him U-2 photographs of developing medium-range missile sites.
Role range: 1961-1965
Second Eisenhower Crisis Briefing
McCone again briefed Eisenhower, this time explaining the administration's decision to combine a naval quarantine with demands for removal of the Soviet missiles.
Role range: 1961-1965
Records, sources and methodology
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.