The nearest match we can find is "The Abruzzo and Molise Heritage Society of the Washington, D.C. Area" but it's unlikely that they installed the Tosti plaque in London.
This section lists the memorials created by the subject on this page:
Assoc. Abruzzo-Molise, G.B.
Creations i
Sir F. Paolo Tosti
City of Westminster Sir F. Paolo Tosti, K.C.V.O., musician, 1846 - 1916, liv...
Other Subjects
friendship of the English speaking peoples
Note this motto "friendship of the English speaking peoples" is also carved above the ornate portico of this building, to the east of this plaque. Bush House was built by Irving T. Bush of the Bush...
1 memorial
Robert Sadler
Silk printer, pugilist, publican and property developer, active in the mid-1800s. Son of a prominent Summerstown family. He ran a local beer house, The Sir Jeffrey Dunstan at 47 Summerstown, and in...
1 memorial
British and Foreign Sailors' Society
Sailors’ Society is an international Christian charity working in ports across the world. After the Napoleonic Wars ended, the need for ships declined, and many former seafarers became destitute. ...
1 memorial
Mangrove Restaurant
At 8 All Saints Road, Notting Hill.  Created and owned for 24 years by Crichlow.  It was a centre for political and social activism within the African and Caribbean culture.  Visitors included: Jim...
Place, Commerce, Community / Clubs, Food & Drink, Race Issues
1 memorial
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