London volunteer soldier records, 1859-1955

Findmypast.co.uk have added an interesting collection of London military records. Here's the blurb:

"We've just put online records of part time soldiers who served in the British Army from 1859-1955. These records will give you details such as service number, rank, enlistment & discharge details (together with a reason for discharge), medals awarded and date of death.

The collection lists men who served with the following corps and battalions:

20th Middlesex Rifle Volunteer Corps
11th Middlesex Rifle Volunteer Corps
3rd Volunteer Battalion, The London Regiment (Royal Fusiliers)
10th (3rd City of London) Battalion, The London Regiment (Royal Fusiliers)
625th London Anti-Aircraft Regiment."

These are transcript records for a total of 5,272 men from a compilation by military researcher J P Kelleher; no indication of his source.