Born Joannes Maria Aemilius, 13 August 1872, Switzerland, died 14 September 1929.
Chairman London County Council 1927 – 1928.
Anglo-Swiss theatre manager and businessman.
The Gatti family had large business interests in Westminster – theatres, café-restaurants and the Charing Cross and Strand Electricity Supply Corporation Limited. Business interests led to involvement in local government.
1903 elected to Westminster City Council, Charing Cross Ward; Moderate Party. Mayor of Westminster 1911-12.
1918 co-opted onto London County Council as Municipal Reform Party Councillor, Strand division; after WWI elected for Westminster Abbey division, holding the seat until he died. Chairman LCC finance committee for 6 years.
Articles in Wikipedia , Dictionary of National Biography, The Times 16 September 1929 p 4.
Some information on the family here .