Annie Besant (1847–1933), second President of The Theosophical Society from 1907 to 1933, was described as a ‘Diamond Soul’, for she had many brilliant facets to her character. She was an outstanding orator of her time, a champion of human freedom, educationist, philanthropist, and author with more than three hundred books and pamphlets to her credit.

Henry Steel Olcott (1832–1907), President-Founder of the Theosophical Society was born on 2 August 1832 at Orange, New Jersey. Olcott came from an old English Puritan family that had been settled for many generations in the United States.

C. Jinarājadāsa (1875–1953), the fourth President of the Theosophical Society, was educated at Cambridge University, England, and was an exceptional linguist, who lectured fluently in many European languages. His wide range of interests and writings included religion, philosophy, literature, art, science and occult chemistry. He made valuable sketches and notes during the clairvoyant investigations of Annie Besant and C. W. Leadbeater into the structure of matter.

Charles Webster Leadbeater (1847–1934) was a highly developed clairvoyant who unfolded and perfected his psychic faculties under the guidance of his Adept-Teacher. He commenced clairvoyant investigations in 1893, on occasion collaborating with Annie Besant, the second President of The Theosophical Society, and wrote over thirty books on the spiritual life and the psychic nature of man.

N. Sri Ram (1889–1973), fifth President of The Theosophical Society from 1953 to 1973, dedicated himself to Theosophical work as a young assistant of Dr Besant. He was closely associated with her social, political and educational and other activities, and helped her in editing New India, a daily newspaper that was influential in the struggle for India’s freedom.