conventionDeclaration detailLevel http://ica-atom.org/doc/RS-2#5.4 Ancestry (online) person Leathes, Henry Mussenden (1789-1864), landed proprietor conventionDeclaration 1789-1864 Leathes, Louisa Mary (1779-1855), sister of John Francis Leathes Letter from H. M. Leathes to Dawson Turner