Harold Macmillan | Macmillan Publishers | Palgrave Macmillan | Macmillan | James MacMillan | Macmillan Cancer Support | MacMillan Bloedel | Donald Baxter MacMillan | Alexander Macmillan, 2nd Earl of Stockton | Michael MacMillan | MacMillan | David MacMillan (sound engineer) | David Macmillan | Macmillan Publishers (United States) | James MacMillan (composer) | Hugh Macmillan | Violet MacMillan | Romeo and Juliet (MacMillan) | Robert MacMillan | Norma MacMillan | Macmillan's Magazine | Macmillan Publishers | Macmillan Media | MacMillan Bloedel | Macmillan Birder's Guide to European and Middle Eastern birds | Macmillan 4x4 UK Challenge | Lawrie MacMillan | Kirkpatrick Macmillan | John Macmillan Brown | Hugh Macmillan, Baron Macmillan |
The other eighteen who were awarded this distinction were: Roy Chapman Andrews; Robert Bartlett; Frederick Russell Burnham; Richard E. Byrd; George Kruck Cherrie; Merian C. Cooper; Lincoln Ellsworth; Louis Agassiz Fuertes; George Bird Grinnell; Charles A. Lindbergh; Donald B. MacMillan; Clifford H. Pope; George Palmer Putnam; Kermit Roosevelt; Carl Rungius; Stewart Edward White; Orville Wright.
Some of their guests were renowned, including H.R. MacMillan, president of the forest company MacMillan Bloedel; he visited twice a year with an entourage of business friends and owned property on the Clearwater River from 1949 to 1972.
His maternal grandmother, Olwen Elizabeth Lloyd George, was a daughter of David Lloyd George, British Prime Minister between 1916 and 1922, with his first wife Margaret Owen.
William Pinch, over the course of fifty years, had accumulated one of the world's most important mineral collections.