He could not refuse the call of America. His wife too was agreeable. He left for America with his family. In Boston they were happy. Coomaraswamy had his hands full and his work was rewarding.

There he met Sister Niveditha. She was Irish. Her former name was Miss Margaret E. Noble. She became a disciple of Swamy Vivekananda. She was deeply influenced by the personality of the heroic sanyasi. She embraced Hinduism and was named Sister Niveditha.

Ananda Coomaraswamy worked with her and brought out the book 'Myths of the Hindus and the Buddhists'.

Even in America Coomaraswamy continued his Indian way of life. He performed the worship of Shanmukha everyday ceremonially. His forehead was always adorned with sandal paste and a Kumkum mark. He wore a turban on his head instead of a cap even though he wore Western clothes. His turban became well known in Boston.