" They shall grow not old, as we that are left grow old:
Age shall not weary them, nor the years condemn.
At the going down of the sun and in the morning
We will remember them."
Veteran ~ Latin "Veteranus", from Latin vetus = old

British war dead being tagged as "veterans" is incongruous. Since this is a US based website, such foibles will be tolerated and suggestions processed by default after three weeks.
In the US any ex-armed forces person is a "veteran".
In the UK a veteran is someone with considerable active military service. Few of my British heroes survived long enough to be veterans. Someone who died in service is rarely considered a veteran.
Although The UK Ministry of Defence (MOD) defines a veteran as: "anyone who has served for at least one day in Her/His Majesty's Armed Forces (Regular or Reserve), or Merchant Mariners who have seen duty on legally defined military operations", "Service Leaver" is typically used in legal documents, as understanding and use of the term "veteran" does vary, not least amongst those who have served. Many former Armed Forces personnel in the UK do not define themselves as "veterans".

Everyone deserves to be remembered properly.
The Commonwealth War Graves Commission sometimes lists war dead by initials and surname only, but it is often possible to identify at least one forename, occasionally two.
For example, British soldiers that served overseas during WWI usually have a Medal Rolls Index Card on Ancestry. From the regiment and regimental number of a soldier it is usually possible to identify him even if the surname is a common one.
The Scottish National War Memorial is valuable for Scottish soldiers: https://www.snwm.org/roll-search/

Unfortunately, some refuse suggestions to change the prefix "PVT" etc for British war graves that they manage, although Find A Grave now offers the option to type "Private" (or "Pte") etc as a prefix.
For British military memorials, prefix with the rank written in full or a British rather than US military abbreviation.
Sometimes on family headstones the rank may differ from that listed by the CWGC. If so, it is advisable to note the discrepancy in the biography or gravesite details; e.g. "CWGC/medal card lists as PRIVATE - family inscription as CORPORAL".
There is even "DR." (instead of "DVR") inscribed on the family headstone of a soldier who was a driver in the RASC – not a doctor in the RAMC.
Most of the British Army now uses the spelling "SERGEANT", although "SERJEANT" was usual until after WWI, but "SERGEANT", "SERGT." & "SGT." are spellings found on family headstones.
The British Army's Foot Guards have used the rank "Guardsman" ( abreviation "Gdsm") since 1920, when it was adopted instead of "Private", but WWI war graves are often inscribed "GUARDSMAN", strictly speaking an anachronism.

Acceptable British Army abbdreviations:
General - Gen
Lieutenant General - Lt Gen (later, just Gen)
Major General - Maj Gen (later, just Gen)
Brigadier - Brig
Brigadier General - Brig Gen (later, just Gen) - this historic rank is not current in the British army.
Colonel - Col
Lieutenant Colonel - Lt Col (later, just Col)
Major - Maj
Captain - Capt
Lieutenant - Lt
2nd Lieutenant - 2nd Lt
Staff Sergeant - Staff Sgt
Colour Sergeant - Colour Sgt
Sergeant - Sgt (Serjeant - Sjt if a member of The Rifles)
Corporal - Cpl
Lance Corporal - L/Cpl
Private - Pte
Abbreviations to be used only at second reference:
Regimental Sergeant Major - RSM
Warrant Officer - WO
L/Cpl of Horse - L/CoH
Ranks that we do not abbreviate:
Field Marshal
Bombardier

" They shall grow not old, as we that are left grow old:
Age shall not weary them, nor the years condemn.
At the going down of the sun and in the morning
We will remember them."
Veteran ~ Latin "Veteranus", from Latin vetus = old

British war dead being tagged as "veterans" is incongruous. Since this is a US based website, such foibles will be tolerated and suggestions processed by default after three weeks.
In the US any ex-armed forces person is a "veteran".
In the UK a veteran is someone with considerable active military service. Few of my British heroes survived long enough to be veterans. Someone who died in service is rarely considered a veteran.
Although The UK Ministry of Defence (MOD) defines a veteran as: "anyone who has served for at least one day in Her/His Majesty's Armed Forces (Regular or Reserve), or Merchant Mariners who have seen duty on legally defined military operations", "Service Leaver" is typically used in legal documents, as understanding and use of the term "veteran" does vary, not least amongst those who have served. Many former Armed Forces personnel in the UK do not define themselves as "veterans".

Everyone deserves to be remembered properly.
The Commonwealth War Graves Commission sometimes lists war dead by initials and surname only, but it is often possible to identify at least one forename, occasionally two.
For example, British soldiers that served overseas during WWI usually have a Medal Rolls Index Card on Ancestry. From the regiment and regimental number of a soldier it is usually possible to identify him even if the surname is a common one.
The Scottish National War Memorial is valuable for Scottish soldiers: https://www.snwm.org/roll-search/

Unfortunately, some refuse suggestions to change the prefix "PVT" etc for British war graves that they manage, although Find A Grave now offers the option to type "Private" (or "Pte") etc as a prefix.
For British military memorials, prefix with the rank written in full or a British rather than US military abbreviation.
Sometimes on family headstones the rank may differ from that listed by the CWGC. If so, it is advisable to note the discrepancy in the biography or gravesite details; e.g. "CWGC/medal card lists as PRIVATE - family inscription as CORPORAL".
There is even "DR." (instead of "DVR") inscribed on the family headstone of a soldier who was a driver in the RASC – not a doctor in the RAMC.
Most of the British Army now uses the spelling "SERGEANT", although "SERJEANT" was usual until after WWI, but "SERGEANT", "SERGT." & "SGT." are spellings found on family headstones.
The British Army's Foot Guards have used the rank "Guardsman" ( abreviation "Gdsm") since 1920, when it was adopted instead of "Private", but WWI war graves are often inscribed "GUARDSMAN", strictly speaking an anachronism.

Acceptable British Army abbdreviations:
General - Gen
Lieutenant General - Lt Gen (later, just Gen)
Major General - Maj Gen (later, just Gen)
Brigadier - Brig
Brigadier General - Brig Gen (later, just Gen) - this historic rank is not current in the British army.
Colonel - Col
Lieutenant Colonel - Lt Col (later, just Col)
Major - Maj
Captain - Capt
Lieutenant - Lt
2nd Lieutenant - 2nd Lt
Staff Sergeant - Staff Sgt
Colour Sergeant - Colour Sgt
Sergeant - Sgt (Serjeant - Sjt if a member of The Rifles)
Corporal - Cpl
Lance Corporal - L/Cpl
Private - Pte
Abbreviations to be used only at second reference:
Regimental Sergeant Major - RSM
Warrant Officer - WO
L/Cpl of Horse - L/CoH
Ranks that we do not abbreviate:
Field Marshal
Bombardier