In Memoriam Mark Hatfield (Senator) Mark Hatfield was the longest serving U.S. Senator in Oregon history, serving five terms as Republican Senator from 1967 to[removed]Hatfield successfully introduced and campaigned for th

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• Nuclear warfare
• Louise Reiss
• Comprehensive Nuclear-Test-Ban Treaty
• Dagmar Wilson
• Nuclear weapons testing
• Women Strike for Peace
• Partial Nuclear Test Ban Treaty
• Nuclear proliferation
• Strontium-90
• Nuclear weapons
• International relations
• Nuclear technology