W. B. YEATS
W. B. Yeats (1865-1939) is the most documented named patient of the Steinach operation’s peak period. His 1934 vasoligation by Norman Haire in London is confirmed by multiple independent sources: Lock’s 1983 BMJ article (PMID 6418285), Schultheiss et al. 1997 (PMID 9430441), and contemporaneous accounts. The date of 6 April 1934 is cited by Wikipedia from the Lock BMJ account; Haire’s own book on rejuvenation (1924) is the primary clinical reference for the procedure as Haire performed it. Yeats’s self-reports of renewed creative output are documented in his correspondence. The procedure’s actual physiological contribution is not separately assessable from the documented placebo and expectation effects. Yeats died in Roquebrune-Cap-Martin, France, on 28 January 1939 at age 73, within normal life expectancy for his demographic; no evidence of life extension was produced.