Short answers, pulled from the story.
The term JewBu emerged in 1994 when Rodger Kamenetz published his book The Jew in the Lotus. This work introduced a label for people of Jewish ethnicity who practice Buddhism while sometimes maintaining their Jewish identity.
Charles Strauss stood before the Parliament of the World's Religions in 1893 and declared himself a Buddhist after hearing delegates Soyen Shaku and Anagarika Dharmapala speak. This moment marked one of the earliest public intersections between Jewish identity and Buddhist practice in America.
Emily Sigalow published her book American JewBu in 2019 to survey the landscape of American Buddhists. Her research estimated that ethnically Jewish Buddhists make up between 16.5% and one-third of all non-Asian American practitioners.
Joseph Goldstein, Jack Kornfield, and Sharon Salzberg founded the Insight Meditation Society to teach Vipassana meditation based on Thai traditions. Sylvia Boorstein teaches at Spirit Rock Meditation Center while guiding students through similar practices.
Leonard Cohen wrote songs blending Jewish themes with Buddhist insights throughout his career as a musician. Allen Ginsberg embraced Buddhism while maintaining his identity as a Jewish poet during the Beat era.