 | Abbott Payson Usher : American Economic Historian, with the Society for the History of Technology (SHOT) Rewarding the Abbot Payson Usher Prize, Named in his Honor, Annually since 1961 — Browsing1883 — June 18, 1965 |
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| Abbott Payson Usher : American Economic Historian, with the Society for the History of Technology (SHOT) Rewarding the Abbot Payson Usher Prize, Named in his Honor, Annually since 1961 — Browsing1883 — June 18, 1965 |
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