These are the Forest players who went to war
Player Service Rank Service
Regiment Unit(s) Notes
Bailey JoeArmyCaptainF/290Norfolk Regiment2nd Battalion
Bell Jack
Belton Jackie
Clifford ThomasArmyPrivate34893Royal Scots Fusiliers6/7th BattalionThomas Clifford is a former Motherwell player who went on the 1905 South American tour with Forest in place of Barnstable who couldn't go due to work commitments.
Clifford served as a private in the Royal Scots Fusiliers during the First World War and was killed on the Somme on 19 January 1917.
Coleman TimArmyPrivateF/904Duke of Cambridge's Own (Middlesex) Regiment17th (Service) Battalion (1st Football) John 'Tim' Coleman signed from Fulham in 1914 and, while serving in the Army during WWI, made 37 appearances for Forest.
Condrey Fred
Derrick John
Firth RobertArmySergeant41703Royal Field ArtilleryXXIV Brigade; 6th Divisional Artillery Column RFA
Fiske TommyArmyBorn William Fiske, but known as Tommy, he signed from Blackpool for a large fee in the summer of 1914. However his arrival date of August 1st coincided with his being called up to the army (along with Robert Firth and Jack Bell) at the start of World War 1.
He made just 5 appearances for Forest, presumably while on leave during Christmas and New Year of 1914/15, and was subsequently killed in action on May 27th 1918 during the Battle of Aisne.

His obituary included these lines:
With his platoon surrounded, (Fiske) rolled up his shirt sleeves and went over the top. No identifiable part of the goalkeeper's body has ever been found
Forman TomArmyLance Bombardier84529Royal Garrison Artillery191st Siege Battery RGA
Gibson Thomas
Green Arthur
Iremonger HaroldJames, Harry and Albert Iremonger were brothers.
Lessons FredArmyLance Corporal23563Northamptonshire Regiment1st BattalionFred Lessons played for us for three season before being sold to Northampton where he had a further eight seasons before being killed in action in World War 1
Lockton Johnnie
Mercer JoeArmySergeantF/10Duke of Cambridge's Own (Middlesex) Regiment17th (Service) Battalion (1st Football) Joe Mercer was the father of the more famous Joe Mercer Jr who played for Everton and Arsenal before managing several clubs (and England). Joe Mercer Sr fought in WWI where he received respiratory problems from a gas attack. He died from complications in 1927, aged 36.
Morgan-Owen MorganArmyMajorEssex Regiment1/4th Battalion
Neve Edwin
Niblo Tom
Timmins SamArmyGunner99568Royal Garrison ArtilleryNo. 4 Depot RGA; 1st (Reserve) Battery RGA; 229th Siege Battery RGA