Mars on 1960 December 7/8 at 22:40 EST (03:40 UT) as sketched by I.K. Williamson. C.M. 163°. 6" refractor at 150x. Seeing 3. Transparency 3-2. T = 6°.
1959 Nov 30: Letter from Leon Campbell to I.K. Williamson
George Wedge and Isabel Williamson at 1959 RASC AGM (The Lunar section at Work).
Miss I.K. Williamson at the 1959 AGM. (Dr. Peter Millman is at left.)
