I found some new information.His middle name is Richard.He was b 12 Feb 1892 in Metamora, Fulton Co., OH (just slightly west of Toledo).
He resided in Metamora when he enlisted in the US Marines 27 Jul 1917 at Toledo, OH.He was assigned to Philadelphia PA Company B on 6 Sep 1917, a Corporal at Quantico, VA on 6 Apr 1918, a Sergeant 24 Sep 1918; quartermaster Sergeant 28 Dec 1918.Discharged 13 May 1919.Character excellent.File #95473, V 22.National Archives may have much more info than this.
My guess is that he died sometime before the social security either was in effect, or he wasn't working when it was, as he's not listed in the SSDI and I searched every way I could... using FOOR, FOORE, and one time putting in just the date of birth and NO names, and clicked on the option that his SS card would've been issued from OH, and came up with nothing similar to Percy Richard Foore.
I believe this Percy FOORE to be the s/o Richard and Mary A. (PERUE) FOOR.The two Percy FOOR's in the SSDI are not this Percy.