Thanks for the Census entry Cath. Must have been a wealthy family. Louis must have been very lowly!
Very interesting reading from the London Gazette Rob. Seems like they went out of business. I wonder if this may have been Lewis Senior? It's possible for 1822. By 1841 Lewis jnr was in Scotland, and he set up a dyeing company there.
Thanks for finding it. Fascinating.
Cheers everybody