1951, July 1. Time and Time Keepers. Forum No. 240. Participants: Francis J. Heyden, S.J., Director, Astronomical Observatory; Edward U. Condon, Director Astronomical Observatory; Edward U. Condon, Director of the Bureau of Standards, Washington, DC; Paul Sollenberger, Director Time Service Division, United States Naval Observatory. Moderator: Frank Blair. Liberty Broadcasting System. From the Raymond Reiss Studio.

1951, July 1. Time and Time Keepers. Forum No. 240. Participants: Francis J. Heyden, S.J., Director, Astronomical Observatory; Edward U. Condon, Director Astronomical Observatory; Edward U. Condon, Director of the Bureau of Standards, Washington, DC; Paul Sollenberger, Director Time Service Division, United States Naval Observatory. Moderator: Frank Blair. Liberty Broadcasting System. From the Raymond Reiss Studio.. Georgetown University Forum Transcripts, GTA-000107. Georgetown University Archives , Booth Family Center for Special Collections. https://findingaids.library.georgetown.edu/repositories/12/archival_objects/1352717 Accessed March 14, 2025.