May returned to Paris and began teaching her new faith and played a significant role in introducing the religion to several people while in Paris. She helped convert several new believers, including Charles Mason Remey, Hippolyte Dreyfus, Laura Barney (Dreyfus), Englishman Thomas Breakwell and Juliet Thompson. On her return five of the younger female pilgrims had a photograph commissioned and sent to ʻAbdu'l-Bahá. On receiving the photograph he wrote a tablet addressed to the five, whom he named the "Five Holy Leaves". She met a close friend of her brother's, William Sutherland Maxwell, a Canadian of Scottish background, and the two married in 1902 in London. William had been introduced to the religion before their marriage but he did not become a Baháʼí until 1909, after meeting ʻAbdu'l-Bahá. The couple had one child, a daughter named Mary.