Find My Past has the Militia Attestation Papers that are housed at National Archives, Kew under record series WO96. The records available online date 1806 – 1915 and are a great source for family historians whose ancestors feature in them.
The militia who were part time soldiers were a county based force whose main job was the defence of England whilst the regular army were overseas fighting. A pre-curser of Dad’s Army!
The records were kept up to date until the solider was discharged providing full details of time in service. And, since the militia recruits were part-time, there are details of the jobs the men undertook for the rest of the time.
Lots of information on these records such as date & place of birth, occupation (when they weren’t off playing soldiers!), physical descriptions and even in a few of the later records photographs.