In 1904 Dr. Andrew John Horne was one of two masters of the National Maternity Hospital in Holles Street.
In Lestrygonians Josie Breen tells Bloom that Mina Purefoy is in the hospital because "Dr Horne got her in." Oxen mentions his proprietorship: "Of that house A. Horne is lord. Seventy beds keeps he there." Later, the chapter very exactly identifies "the National Maternity Hospital, 29, 30 and 31 Holles street, of which, as is well known, Dr A. Horne (Lic. in Midw., F. K. Q. C. P. I.) is the able and popular master."
The anagrammatic titles, which Joyce has such fun with in Aeolus and Cyclops, here reflect more-or-less actual accomplishments: according to Gifford, they signify "Licensed in Midwifery, Former Knight of the Queen's College of Physicians in Ireland (since Horne is described as 'ex-Vice President, Royal College of Physicians, Ireland' in Thom's 1904, p. 1381)." In 1909 Horne became President of the Royal College of Physicians of Ireland, and in 1913 he actually was knighted by King Edward.
Fully 17 times, Oxen of the Sun links Horne's name with the hospital in which he served, turning a national institution into a personal one: "Horne's house," "Horne's Hall," "the house of Horne," "the high hall of Horne's house," "Horne's."