Agatha Mary Clarissa Miller was born in Torquay, Devon, in the United Kingdom, the daughter of a wealthy American stockbroker. Her father died when she was eleven years old. Her mother taught her at home, encouraging her to write at a very young age. At the age of 16, she went to Mrs. Dryden's finishing school in Paris to study singing and piano. In 1914, at age 24, she married Colonel Archibald C...

Agatha Mary Clarissa Miller was born in Torquay, Devon, in the United Kingdom, the daughter of a wealthy American stockbroker. Her father died when she was eleven years old. Her mother taught her at home, encouraging her to write at a very young age. At the age of 16, she went to Mrs. Dryden's finishing school in Paris to study singing and piano. In 1914, at age 24, she married Colonel Archibald C...