Browse Items (1220 total)

Elizabeth Langdon Williams

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Elizabeth Williams, who worked as a computer for Lowell Observatory beginning in 1905.

Letter from Elizabeth Williams to Percival Lowell discussing Planet X calculations

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Letter from Elizabeth Williams to Percival Lowell discussing mathematical calculations of Planet X and Uranus. Williams worked in Lowell's Boston office for many years as a computer, making calculations associated with Lowell's search for Planet X.

Trans-Neptunian planet (Planet X) computations by Elizabeth Williams

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Trans-Neptunian planet (Planet X) computations by Elizabeth Williams, who worked in Percival Lowell's Boston office as a computer, i.e. a person who manually made calculations.

Wrexie Leonard's Scrapbook Number 1

WLL Album2.pdf
This scrapbook contains newspaper clippings, cartoons, illustrations, and a few photographs.

Wrexie Leonard's Scrapbook Number 2

WLL Newspaper Cuttings2.pdf
This scrapbook contains birth, death, and marriage announcements.

Wrexie Leonard's Scrapbook Number 3

WLL Note Book2.pdf
This scrapbook contains handwritten accounts and mementos from Leonard's personal life.

Lowell Observatory Logbook Page, January 3-9, 1900

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Logbook page with drawings of Venus by Wrexie Leonard and Percival Lowell

Lowell Observatory Logbook Page, Feb. 22, 1897

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Drawings of Mars by Wrexie Leonard, Percival Lowell, and T.J.J. See

Lowell Observatory Logbook Page, March 4, 1897

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Drawings of Mars by Wrexie Leonard and Percival Lowell

Lowell Observatory Logbook Page, March 19, 1897

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Drawings of Mars by Wrexie Leonard and Percival Lowell