Have now quickly checked this, and Pat does mention Bleistein as the name of nearby extant City of London fur dealers, who were / are a traditionally Jewish commercial sector in London, as is 'the rag (clothing and dress manufacture) trade' in general.
Recall myself having some offline email chats with Pat whilst she was researching her book, about the name Bleistein and, particularly, the literal, German meaning of the name, which is 'leadstone' (with possible allusions to metallic ores, cf Goldstein/Silberstein/Eisenstein etc.0
This is more fully mentioned herehttp://stevencscheer.com/patriciasloane.htm
This line of discussion with Pat also led I recall to one about hard rock mining in general, which differs very much in technique from the mining of coal, eg., tin mining in Cornwall; graphite mining in Cumberland from c. 1500/1600, along with iron ore (haematite) mining which burgeoned there from c. 1870s.
I have never seen anywhere else any reference to 'Stetson' extending beyond Rickard's admirably thorough notes on his website.
Similarly to 'Bleistein' , apart from the usual slouchbrimming headwear, the literal meaning of 'Stetson' is, in Danish, 'stepson' or possibly a shortening of son of Stephen / Stephenson, or juxtaposing 'Stet', if I recall schoolboy Latin from the verb 'to stand (firm)' which declines something like  'sto stare steti statum' which is not getting far away from a more universal allusion such as anyone's fighting son.
Whilst Stephenson is a fairly common surname in England, Stetson isn't, and no doubt was more common across the pond from those of Danish extraction.

On Sun, Feb 7, 2010 at 9:34 AM, Peter Montgomery <[log in to unmask]> wrote:
Very curious. How could he/she/it have known any of this?

----- Original Message -----
From: "Rickard A. Parker" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, February 06, 2010 11:44 AM
Subject: Mr. Bleistein at the Cannon Street Grill

> A reader of my TWL website recently emailed me a query about a man in
> Eliot's life around 1920 named Stetson. He also wrote this paragraph
> about Bleistein with information new to me:
>     You might be interested to know (if you don't already)
>     that there a real Bleistein, who ran a Fur and Skin
>     Merchants on Lower Thames Street near Eliot's
>     workplace. A submission to Notes & Queries also
>     mentioned (although I do not know how the author can
>     have known it) that this Mr. Bleistein smoked Coronas
>     and dined at the Cannon Street Grill. From that
>     evidence it would seem fairly certain he was the real
>     life model for the Bleistein in 'Burbank with a
>     Baedecker: Bleistein with a Cigar'. 'Money in furs'.
>     (Of course Bleistein makes an appearance in the drafts
>     to The Waste Land).
> Regards,
>      Rick Parker