Eaton Mews

Possibly refers to Eaton Mews in Belgravia, London, which would have originally been stables for houses in Eaton Square.

In London Labour and the London Poor: 

The Whistling Man. (Volume 3) [as Eton Mews]

Eton

Eton College, founded 1440, is a prestigious public school located in Eton, Berkshire, England.

In London Labour and the London Poor:

MEETING OF TICKET-OF-LEAVE MEN (Volume 3)

Essex

Essex is a county in the East of England.

In London Labour and the London Poor:

Of the Blind Street-sellers of Tailors’ Needles, etc. (Volume 1)

Hernani

Hernani is a town in the province of Gipuzkoa in Spain.

In London Labour and the London Poor:

Statement of a Beggar. (Volume 1) [as Ernani]

Epsom

Epsom is a town in the modern borough of Epsom and Ewell in Surrey, England, south of London. It is the site of a mineral water spring and spa as the Epsom salts (magnesium sulphate) in the water were thought to have healing qualities. The Epsom Downs are known for horse racing.

In London Labour and the London Poor:

Of Two Runaway Street-Boys. (Volume 1)

The Street Conjurer. (Volume 3)