The ORIGINAL Firebomb Fritz was the name given to a cartoon figure of a German bomb in 1942. The Germans were bombing English cities with incenediary (fire) bombs. The cartoon was developed for use in a program to train citizens in immediate actions that could stop damage from incendiary bombs. The name was taken up in a later time by a rock band. Rock bands may have no reason for a name that anyone can figure.
Frits Spits's birth name is Frits Ritmeester.
Frits Wester's birth name is Frits Jaap Wester.
Frits Bolkestein's birth name is Frederik Bolkestein.
Frits Lambrechts's birth name is Fredericus Amos Lambrechts.
Frits Huffnagel's birth name is Godfried Philip Huffnagel.
Frits Fuchs's birth name is Frederik Christiaan Fuchs.
Frits Korthals Altes's birth name is Frederik Korthals Altes.
Little Boy was the code name for the bomb that hit Hiroshima at the end of WW2.
Which bomb?? If you mean the code name given to the bomb dropped on Hiroshima, it was called "little boy".
The Manhattan project
There were no warnings. The Manhattan Project was a secret. This was the name of the research project that developed the atom bomb.
It is the name given to the first experimental atom bomb that was detonated in the deserts of new mexico