I'm reminded again how a beautiful life can be recognized by the loving community that's arisen around them. Derek talked about his "grandfather professor" often. If you get a chance, ask him about Eugene Commins.
Professor Commins was part of this tight little community of atomic physicists who absolutely live for measurement, measurement of the most precise kind. So when one says "Commins' impact as a colleague, educator and mentor cannot be measured," it strikes me as a most loving expression of respect and camaraderie, and of grief.
And a beautiful quote from Professor Commins himself: