Is there any evidence that the soldier in this photo has shell shock? (Alternate question: is the soldier in this photo a good example of shell shock?) : r/AskHistorians

What are the most chilling images of shell-shocked soldiers from WWI? - Quora

Shell Shock'—The 100-Year Mystery May Now Be Solved

Shell shock – News, Research and Analysis – The Conversation – page 1

Is shell shock/battle fatigue/PTSD a relatively modern condition? Are there any documented examples from before WW1? - Quora

Articles - page 2

What are the most chilling images of shell-shocked soldiers from WWI? - Quora

How many Sherman tanks survived D-Day? If any survived, where are they located today? - Quora

Was The Young Man image created for SCP-106 or was it a real image before : r/SCP

Shell Shock'—The 100-Year Mystery May Now Be Solved

Articles - page 2

325,000+ Soldiers Suffered from “Shell Shock” As A Result of War — But What is It?, by Paradoxon, The Collector

Book Review: The Geography Of Madness - by Scott Alexander