Cosmo Alan Cuthbert Ryder

Parents

• Dudley Henry Ryder
• Georgiana Emily Calcraft

Children

Siblings

• William Henry Dudley Ryder
• Evelyn Georgiana Ryder
• Dudley Granville Richard Ryder
• Katherine Susan Ryder
• Caroline Katharine Ryder
• Cyril John Ryder
• John Claud Dudley Ryder
• Charles Edward Henry Ryder