[2] Walmisley became a solicitor in the City of London and was appointed Clerk to the Vestry and Commissioners for Paving of the Parish of St John the Evangelist, Westminster.
The following year Walmisley served as vice-president of a committee to establish the 'Royal National Rifles' as a 'Brigade for the Defence of the Metropolis ... formed of Artisans and other respectable persons'.
[11][12] AVCs proved expensive to maintain, and the Secretary of State for War, Edward Cardwell refused to pay for the upkeep of horses, harness and field-guns from the annual capitation grant.
As a result, many Volunteer artillery units were wound up in the 1870s, but the 1st Londons continued strongly and absorbed the 1st Middlesex (Hanover Square) AVC.
[2] Walmisley married Maria Augustine Graff (née Girault) on 15 August 1841 at St Paul's, Covent Garden.
She had been born in Paris about 1807 and had married a copper plate engraver Charles Louis Auguste Graff and had three children who were given up as orphans.