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
Swan Wharf & Swan Inn
In the 19th century Swan Wharf was the site of a brewery and public house 'Swan Inn', destroyed by fire in 1871. The image, an 1878 photo by William Reid, shows the tower of All Saints behind. Th...
Hudson's Friends Society of Quilmes
We cannot find any information about this group.
Caxton Hall
Originally designed as the Westminster City Hall. It was associated with the Suffragettes, who started their marches to Parliament from here. 1940 Sir Michael Francis O'Dwyer was assassinated at a ...
Hindle House Community / Hindle House War Memorial Project
Our plan shows the Hindle House estate with the central Community Centre surrounded by the residential blocks, shaded yellow. 197 flats built in 1938-9 as council flats. A WW2 bomb fell on 18 Septe...