Items
Relation is exactly
Campbell, Elizabeth V (Mrs William W.)
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[X162S], Letter from William Wallace Campbell to John Alexander Britton, October 18th, 1915 1915-10-18 -
[X162V], Letter from William Wallace Campbell to Thomas Alva Edison, February 29th, 1916 1916-02-29 -
[X162W], Letter from Thomas Alva Edison to William Wallace Campbell, March 13th, 1916 1916-03-13