Besides Gary Snyder, another hero of mine in the 60s was Alan Watts (1915–73).
His 1972 autobiography In my own way is complemented by
- Monica Furlong, Zen effects: the life of Alan Watts, and
- David Stuart, Alan Watts: the rise and decline of the ordained shaman of the counterculture. 
Watts was blessed with extraordinary mentors throughout his youth. His accounts of drab suburbia in the early chapters of In my own way are worthy of Betjeman. In the distinguished British tradition of alienation, he reflects on his early exposure to Christianity: “on the whole I am ashamed of this culture”, and “I could not make out why such pleasant people espoused such a fearsome and boring religion”. Yet while deploring the “asinine poems set to indifferent tunes”, “wretched bombastic, moralistic and maudlin nursery rhymes”, he goes on to appreciate their charm. He would have loved Dud’s Psalm.
And—long before Alan Bennett’s Sermon:
“the sermons of the clergy—bleated or sonorously boomed […]—conveyed nothing beyond the emotional energies of their funny voices, which all of us used to mock and mimic”. 
Still, he did well to note:
Strangely enough, young people in Japan have the same feeling about the atmosphere of their parents’ Buddhism—the atmosphere which is, to me, enchanting and magical with booming gong-bells and deep-throated and unintelligible sutrachanting. To them all this is kurai—a word which means deep, dark, dank musty, gloomy, and sad. (p.46; cf. pp.421–22)
Such dispassionate observation needs taking on board while observing Chinese rituals (cf. my post on Geertz).
Watts made trenchant comments on the “ritualized brutality” of British education and the teaching of history (“propaganda for the British Empire and the Protestant religion”). His view of schools and universities as “production lines turning out stereotyped personnel and consumers for the industrial machine” may be par for the anti-establishment course of the time, but In This Day and Age his mission to retune values is worth revisiting.
Railing against God and his [sic] role in Europe’s bloody history, he had to escape, taking refuge in the more “amiable” tradition of Buddhism, seeking a mystical depth his guilt-ridden religious upbringing couldn’t offer. Through Christmas Humphreys he became immersed in the Zen of D.T. Suzuki. His early fascination with the Mystic East was nurtured both by his mother’s “oriental treasures” (he relished the clarity, transparency, and spaciousness of landscape paintings), and—plausibly—with Fu Manchu (for me it was The inn of the sixth happiness!). He got to know Nigel Watkins, whose bookshop he relished long before me (In my own way, pp.123–4)—aware that a lot of such literature was “superstitious trash”, he appreciated Watkins’s “perfect discrimination”. He wrote his first pamphlet, An outline of Zen Buddhism, while still a pupil at King’s School, Canterbury. Among many meetings with remarkable men [sic, as ever], he was first introduced to Krishnamurti in 1936. In 1937 he met Eleanor Everett, daughter of Ruth Fuller Everett (herself later married to the Zen priest Sokei-an Sasaki before his death in 1945); they married the following year, moving to the USA as war loomed.
Without any contradiction, Watts’s escape from the grey conformity of suburban Kent also made him “an unrepentant sensualist”. It’s all the more remarkable that he went on to train as an Episcopal priest, becoming ordained in 1945; at the time “it seemed to be the most appropriate context for doing what was in me to do, in Western society”. But unable to reconcile this “ill-fitting suit of clothes” with his inner beliefs, he withdrew from the church in 1950, and after a divorce he moved on to California. Of course, deploring missionary zeal, he was always free-floating—the ultimate trendy vicar, eagerly imbibing all the psychedelic trappings the burgeoning alternative scene had to offer from the prime position of his Cali refuge. Never one for institutions, he had an on-off relationship with academia, becoming what he called a “philosophical entertainer”—guru to the counterculture.
Watts’s 1957 book The way of Zen (1957) is a remarkable introduction to the whole subject. As he notes there:
During the past twenty years there has been an extraordinary growth of interest in Zen Buddhism.
So—just like sexual intercourse (on which he would also have much to say, based on avid participant observation—see e.g. Nature, Man and Woman )—we clearly have to backdate the Western craze for Zen rather before 1963.
In parallel with Gary Snyder, Watts trod his own path, but his admiration for Snyder is clear, evinced in his writings such as the 1959 Beat Zen square Zen and Zen. And for all their discipline, they shared a delight in language and humour:
The task and delight of poetry is […] to eff the ineffable, to screw the inscrutable.
And he even relished Brazil’s balletic “gaieté d’esprit” in the 1970 World Cup! He also left a rich archive of audio recordings—many of them are on YouTube, even if some tip over into self-help or Thought for the day.
Also in England (and with a similar background in his Anglican church choir), the translator John Minford became hooked on Laozi, The Dharma bums, and later the work of van Gulik on the qin zither, as he recounts in this fine zeitgeist article. His early fascination with Chinese mysticism was less challenged than mine was to be, as I came to experience the spit-and-sawdust of folk Daoist ritual practice.
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If the hippies were predated by the beats, then before them both came R.H. Blyth (1898–1964, when authors might still have unscrewable initials rather than personal forenames; see also here), to whose work I was drawn by Alan Watts. Blyth completed his Zen in English literature and oriental classics while interned in Japan in 1941.
I was far more amenable to the oriental classics (notably haiku, his main exhibit) than to all the Shakespeare and Wordsworth, but I got the point that enlightenment didn’t necessarily have to be sought in remote oriental mountain hermitages—as the Daoist and Zen masters indeed remind us. Blyth was also a great Bach lover.
He wrote a whole further series of books on haiku, as well as on humour in Asian and English literature—main exhibit for the former being senryū, humorous counterpart to haiku. He would have enjoyed “the first English haiku”, not to mention this limerick.
Apart from Alan Watts, other devotees of Blyth’s work included Aldous Huxley, Henry Miller, and Christmas Humphreys (another challenging dinner party), all of whom I admired in turn. For Steinbeck’s and Salinger’s absorption in oriental mysticism, see here.
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And before Blyth… there was Eugen Herrigel, whose 1948 book Zen in the art of archery was based on his studies in Japan in the 1920s! His later membership of the Nazi party is less advertised.
Zen archer, Kyoto. ©Timothy Kraemer, on tour with English Concert, 1990s.
Apart from this whole fascination with Zen and Daoism, it was the characters provided in The way of Zen and Zen in English literature and oriental classics that led me to study Chinese at Cambridge, and eventually to read between the lines of dour field reports on local Chinese folk ritual, as well as seeking the unassuming wisdom of Li Manshan. As I became involved with such grass-roots religious activity among poor rural Chinese communities, documenting their fortunes under Maoism, I came to feel somewhat uncharitable towards traces of lofty New-Age hippy-style abstraction in studies of Chinese religion; but now that I revisit the work of such trail-blazing sages, I’m not just nostalgic, I sincerely find much to admire.
 Among many online sites, note http://www.alanwatts.com
 He also had a fine line in limericks, often religious—work this one out, a footnote to the Salisbury (Sarum) rite (In my own way, p.67), rather in the vein of Myles’s tribute to Ezra £ (and there’s another early orientalist!):
There was a young fellow of Salisbury
A notorious halisbury-scalisbury
He went about Hampshire
Without any pampshire
Till the vicar compelled him to walisbury.