In 1814, the Freeman's Journal named Thomas Kelly of Clarendon Street as facing a lawsuit from Clementi for having 'lately made Piano Fortes, and put upon them the names of respectable Houses in London, as if manufactured by them'.

[Addresses differ according to sources: Freeman's Journal gives the Clarendon Street address, Hogan gives the Capel and Clarendon Street addresses and Boydell gives the Capel Street address only.]