This source names Henry Steel Olcott directly: "Ceylon (now Sri Lanka), in 1880 by Henry Steel Olcott, co-founder of the Theosophical Society, together with Helena Blavatsky and the Buddhist monk Hikkaduwe Sri Sumangala."
Source Buddhist Publication Society, Wheel Publication No. 281, "Colonel Olcott: His Service to Buddhism"B. P. Kirthisinghe and M. P. Amarasuriya
Helena, Cities This source names Helena directly: "the Theosophical Society with Helena Blavatsky and William Quan Judge in New York City in 1875 and served as its first president."
Source The Theosophical EnlightenmentJoscelyn Godwin
This source names Henry Steel Olcott directly: "Wikipedia's article on Henry Steel Olcott, community-edited."
Source Henry Steel Olcott (Wikipedia)Wikipedia contributors
This source names India directly: "headquarters to Adyar, near Madras in India, where he worked to connect Theosophy with a revival of Buddhism and Hinduism, formally converting to Buddhism in Sri Lanka in 1880 and campaigning for..."
Source The Theosophical EnlightenmentJoscelyn Godwin
This source names Henry Steel Olcott directly: "American Theosophical Society founder Henry Steel Olcott arrived in Colombo on 16 May 1880, and three days later he and Helena Blavatsky formally took the Five Precepts at Wijayananda Viharaya in..."
Source Henry Steel Olcott (Wikipedia)Wikipedia contributors
This source names Henry Steel Olcott directly: "follows founders Helena Blavatsky and Henry Steel Olcott and traces Theosophy's influence across the arts, music, science, politics and education, filmed on location in New York, London, Amsterdam..."
Source Theosophical Society Adyar's Own Page for ONE FIRE (2025)
This source names Sri Lanka directly: "formally converting to Buddhism in Sri Lanka in 1880 and campaigning for Buddhist rights under British colonial rule."
Source The Theosophical EnlightenmentJoscelyn Godwin
This source names Henry Steel Olcott directly: "covering founders Helena Blavatsky and Henry Steel Olcott and Theosophy's influence across the arts, music, science, education and politics, filmed in New York, London, Amsterdam, Brussels and..."
Source Theosophical Society Adyar's Own Page for ONE FIRE (2025)