Dictionary of national biography, volume 8 (1886) pp.

The dictionary of national biography, supplement volume 1 (1901) pp.

Dictionary of national biography, volume 41 (1895) p289.

Dictionary of national biography, volume 25 (1891) pp.

Dictionary of national biography , volume 50 (1897) pp.

Dictionary of national biography, volume 24 (1890) pp.

Dictionary of national biography, volume 9 (1887) pp.

Dictionary of national biography, volume 30 (1892) pp.

Dictionary of national biography, volume 18 (1889) p152.

Dictionary of national biography, volume 58 (1899) pp.