The first ship out after the war
In 1920 Paramahansa Yogananda sailed from India to Boston aboard the City of Sparta — reported to be the first passenger ship to make the India-to-America crossing after the First World War — to address the International Congress of Religious Liberals. He founded the Self-Realization Fellowship that same year and spent most of the next 32 years in the United States, lecturing across the country until his death in Los Angeles in 1952.
How we know
Yogananda: b. Jan 5, 1893, d. Mar 7, 1952 (Los Angeles); sailed Aug 1920 on the City of Sparta (arrived Boston Sept 19, 1920), addressed the International Congress of Religious Liberals Oct 6, 1920; founded Self-Realization Fellowship 1920; resided in the US 1920–1952 (1952−1920 = 32; age at crossing 1920−1893 = 27). Sources: Wikipedia; yogananda.org (SRF centennial); Autobiography of a Yogi, ch. 37.
One of many fact-checked wonders across eight traditions at The Spring of Wisdom.