My family lived in the area at this time. They had a tripe shop (Butchers Shop) at 133-135 Drummond Street, run by my Gt Gt Gt Grandmother! Harriet Wyatt..I went there recently..it is a Vegetarian Indian Restaurant the building itself much the same as it was in the 1860s- 1880s when they wewre there!!. The Street has a lot of character most of it is early 19thc
one end was demolished to extend Euston Station and its goods sheds.