You’ve found it. A British Army service number. Maybe from:
*a medal
*a family document
*a casualty record
*or your own research
It feels like a breakthrough. But then comes the problem…
You search it — and nothing useful appears. Or you get fragments that don’t quite connect. So what do you actually do next?
Step 1 — Understand What a Service Number Actually Tells You
Before you go any further, you need to reset expectations.
A service number can tell you:
*Rough enlistment period
*Original regiment
*Sometimes the type of service
(via prefixes like “T/”, “M2/”, etc.)
But it does not automatically tell you:
*Battalion
*Where he fought
*Full service history
Think of it as a starting point, not the answer.
Step 2 — Identify the Correct Regiment (And Check It Twice)
This sounds obvious — but it’s where many people go wrong. Ask yourself:
*Is the regiment confirmed… or assumed?
*Does the number actually fit that regiment’s numbering system?
*Could he have transferred?
Because if you start with the wrong regiment, everything else will be wrong too.
Step 3 — Search the Core Record Types (In the Right Order)
Don’t just randomly search databases. Follow a structure:
1. Medal Index Cards (WWI)
*Confirms regiment(s)
*Shows medal entitlement
*May reveal multiple units
2. Medal Rolls
*Often more detailed than the card
*Can hint at battalion
3. Service Records (If They Survive)
*The gold standard
*But many are missing (especially WWI)
4. Pension Records / Alternative Files
*Sometimes survive when service records don’t
.
👉 Each of these builds a layer — not the full picture on its own
Step 4 — Look for Clues, Not Answers
This is the shift most people miss. You are not looking for one document that says everything.
You are looking for:
*Patterns
*Repeated units
*Dates that line up
*Mentions across multiple sources
For example:
*Same battalion appearing twice = strong indicator
*Consistent regiment + theatre = likely path
Military research is about corroboration, not single sources.
Step 5 — Use War Diaries to Rebuild the Story
Once you have a likely unit, this is where it comes alive. War diaries allow you to:
*Track movements
*Identify battles
*Understand daily activity
But here’s the catch, you need the correct battalion first. Otherwise you’re reading the wrong story entirely.
So What Happens Next?
At this point, it stops being about searching and starts being about working the problem. You pull together every reference, check your assumptions, look for patterns across sources, and account for gaps rather than forcing answers. In short, you stop hunting for one document and start building the story from what actually survives.