The unit I'm tagging at the moment (7/8 Royal Irish Fusiliers) uses this term regularly in movement orders, I'm guessing as it's usually in the same paragraph as instructions about sick parade that it refers to soldiers who are sick/wounded. Would they use what seems to be a slang term in official orders? I haven't seen it used by any other units.
by cyngast moderator
Well, I found this in "A Dictionary of Slang and Unconventional English": https://books.google.com/books?id=IAjyQdFwh4UC&pg=PA270&lpg=PA270&dq=is+crocks+a+slang+term+for+wounded+or+ill+men&source=bl&ots=_2QweOuN_F&sig=_h8nPRf0zHKS5xC7SYBGXDoWexk&hl=en&sa=X&ved=0ahUKEwjS2IiKw6HOAhUF5CYKHeteBQ4Q6AEIQzAH#v=onepage&q=is crocks a slang term for wounded or ill men&f=false Look in the right-hand column, about the sixth entry down. One of the definitions is "a disabled person." The next entry down is "crock up: To get disabled; break down; fall ill. Common in WW1."
Seems a bit odd to see it in official orders.
As a follow on to The Crocks comments. Another meaning.
There is a reference to ‘All Old Crocks’ in a War Slang Article see link: http://www.wakefieldfhs.org.uk/War Slang.htm It quotes the following:
“All Old Crocks - Army Ordnance Corps (AOC)”
Nice to know they still all had a sense of humour!