captured wayward asteroid. Daly applied Newtonian physics to make his point, which was later validated. Family In 1903, Daly married Louise Porter Haskell, daughter of Alexander Cheves Haskell and Alice Van Yeveren, and elder sister of Mary Elizabeth Haskell. After their marriage, Louise accompanied Daly on his travels, and in the field, as an assistant. She did much of the work in preparing and editing his manuscripts and books, and Daly's 1914 book on 'Igneous Rocks and their Origin' is dedicated to her; his 'inspiring fellow worker'. Awards In 1909, Daly was elected a member of the American Academy of Arts and Sciences. Daly was awarded the Penrose Medal in 1935, the Wollaston Medal in 1942 and the William Bowie Medal in 1946. In 1950 he became foreign member of the Royal Netherlands Academy of Arts and Sciences. The potassium zirconium silicate mineral dalyite and craters on Mars and the Moon are named in his honor. His Cambridge, Massachusetts, house (the Reginald A. Daly House) is now a National Historic Landmark. References Bibliography Further reading Robert M. Hazen: Reginald Aldworth Daly (1871-1957). Daly′s Biography, American Geophysical Union James H. Natland: Reginald Aldworth Daly (1871–1957): Eclectic Theoretician of the Earth. GSA Today, vol. 16, no. 2, 2006 Francis Birch: Reginald Aldworth Daly, 1871-1957, A Biographical Memoir National Academy of Sciences, Washington, DC, 36 pp., 1960 External links 1871 births 1957 deaths Canadian geologists Penrose Medal winners Wollaston Medal winners Harvard University faculty People from Lennox and Addington County Harvard University alumni Members of the Royal Netherlands Academy of Arts and Sciences Members of the United States National Academy of Sciences Tectonicists Presidents of the Geological Society of America Fellows of the American Academy of Arts and Sciences