Boyson and Slee
of 17, St. Helen's Place, London, E.C.
Established early in nineteenth century by Ambrose Boyson. Succeeded in 1825 by Boyson & Hoyer; in 1816 by Boyson, Hoyer & Tagart; in 1865 by Tagart, Boyson & Slee; and in 1886 by Boyson & Slee.
1914 Present Principals: Ambrose P. Boyson and Ambrose Boyson.