Colley Edmund George Hume Grattan

(1864-1936) (1864–1936)

Parents

• Sir Edmund Arnaut Grattan
• Mary Cawthorne Hunter

Children

• Roderick Herbert Barrington Grattan
• Edmund Grattan

Siblings

• Violet Grattan
• Violet Grattan

Partners

• Winifred Katharine Wyndham Barnard