Browse Items (1609 total)

Unknown, Elizabeth Langdon Williams, 1920 ca.

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

Williams, Elizabeth Langdon, Letter from Elizabeth Williams to Percival Lowell discussing Planet X calculations, 1910-08-15

Letter from Elizabeth Williams to Percival Lowell discussing mathematical calculations of Planet X and Uranus. Williams worked in Lowell's Boston…

Williams, Elizabeth Langdon, Trans-Neptunian planet (Planet X) computations by Elizabeth Williams, 1910 ca.

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…

Leonard, Wrexie Louise, Wrexie Leonard's Scrapbook Number 1, 1877

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

Leonard, Wrexie Louise, Wrexie Leonard's Scrapbook Number 2, 1875 ca.

This scrapbook contains birth, death, and marriage announcements.

Leonard, Wrexie Louise, Wrexie Leonard's Scrapbook Number 3, 1889 - 1907

This scrapbook contains handwritten accounts and mementos from Leonard's personal life.

Leonard, Wrexie Louise, Lowell Observatory Logbook Page, January 3-9, 1900, 1900-01

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

Leonard, Wrexie Louise, Lowell Observatory Logbook Page, Feb. 22, 1897, 1897-02-22

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

Leonard, Wrexie Louise, Lowell Observatory Logbook Page, March 4, 1897, 1897-03-04

Drawings of Mars by Wrexie Leonard and Percival Lowell

Leonard, Wrexie Louise, Lowell Observatory Logbook Page, March 19, 1897, 1897-03-19

Drawings of Mars by Wrexie Leonard and Percival Lowell