Main Blackett Tree

Interactive tree of Georg Friedrich Johannsen

George Thomas Blackett 1883
Anne Jemima Mary Blackett 1886
Colin Ross
James Edmund Blackett 18871942
George Frederick Blackett 1895
Minna Georgine Margaretha Johannsen 18581939
James Blackett 18571915
Georg Friedrich Johannsen
Maria Albertine Dittmann 18341881