Template talk:Infobox promethium

Confirm the role of Harold G. Richter
Can anyone provide a source solidly supporting the inclusion of Harold G. Richter in the list of people for the chemical identification of promethium in 1945 (published in 1947)? Detailed sources only seem to credit the authors of. Mary Mark Ockerbloom (talk) 04:01, 28 December 2018 (UTC)
 * Richter is not mentioned in the promethium article either. I have removed his name from the infobox. Double sharp (talk) 08:01, 28 December 2018 (UTC)