in 1858, at the age of 31. He lived in York with his wife, four sons and two daughters until 1868. Dallas was an editor and translator for the Zoological Record, the Annals and Magazine of Natural History and the Popular Science Review. In 1868 he was elected to the post of Assistant Secretary of the Geological Society following the resignation of H. M. Jenkins, resulting in his resignation from the role of Keeper.

Notably, he translated