I've seen and heard about Gerald Holtom's semaphor design from the late 50's and believe it to (Most likely) be the actual, true source of the symbol but..........
There's a great alternate story that I read about years ago (That I have absolutely NO way to verify) that's WAAAAY more "romantic" and....is "Fairly" believable if you're and old, mid-40's conservative like me
....lol
IT (The other "Genesis" story of the peace symbol) deals with the Kulak/Tambov rebellions in the 20's and 30's in soviet Russia.
As the story goes (Again, I'm NOT claiming this as fact!), the Kulaks (Russian peasant farmers) resisted the collectivization of their farms and property by both burning crops and killing livestock in the face of soviet agricultural "Reforms" ("Your shit now belongs to US" ect) and got in the habit of painting downward facing pitchforks (Three-pronged) on barns as a way of showing their "Flag" to the new elites.
The soviets, threatened with (And sustaining) mass starvation at the time would then move their military and para-military forces into the area and quell the rebellion in any way possible (Killing everyone in a given village was pretty popular
) AND, as a way to show that THEY (The sov's) had gained control of a region, they painted a circle around the pitch-fork which was meant as both a warning to other Kulaks not to pull the same shit AND to show that "PEACE" had come to the area ('cuase all the trouble makers were dead).
As I said....is that true?...I dunno but, I always liked THAT version of its (The peace symbols) origin better because it just reinforced my feelings towards the soviets (That were already fairly homicidal
)
BTW, true or not, those rebellions and the whole story of the industrialization of Russian agriculture under the soviets in the 20's and 30's are pretty good reading for those of you who dig history.
EDIT: (I just have to throw this in lol!)
For alot of years I was a member on a couple of hard-left/dialectic-materialism sites with the screen name "Viva-Kulak" and it used to send the Marxists into FITS when they realized what my name meant! LOL!!!