February 1859
Caswell saw John C. [—] presiding over the United States Senate.
Nation and worldGrade A · 1 independent source
The evidence
“As I am giving a short description of vice-presidents whom I knew, I will also mention one I did not know. I did not meet, but saw him presiding over the Senate in February, 1859. This was John C.”
1900-caswell-reminiscences/11-reflections-and-conclusion.md, PDF pp. 3–27
Caswell, Lucien Bonaparte. The Reminiscences of the Hon. L. B. Caswell. Written at Fort Atkinson, Wis., 1914–1916; four-column newspaper reprint, newspaper and date unidentified. University of Wisconsin-Madison Libraries.
Grade A: Found on a page of one of our sources