Originally Posted by
El Bunto
G-APMA Edmund Halley
G-APMB Walter Gale
G-APMC Andrew Crommelin
G-APMD William Denning
G-APME John Tebbutt
G-APMF William Finley
Discoverers of astronomical comets
Add
G-APMG John Grigg
G-ARCO John Hind
G-ARCP William Brooks
I can't find any names for the final five aircraft delivered in 1961.