Societal impact, influence on public opinion etc.
I admit, I'm more of a financial legal historian focused on the 1800s. Some light shed on post-RMS Lusitania and post-Pearl Harbor pacifism would be neat. This is of course thinking of recent events in Ukraine. Still working on PhD I will note I do follow the notion that history never repeats itself, but eh..those that specialize in this area it would be interesting to hear from you. Maybe next financial crisis I can add to questions pertaining to financial legal history..maybe..it seems my PhD is making me more introverted as the weeks, months...pass by.
Congresswoman Jeanette Rankin is central to both parts of your question. Rankin was elected to the House of Representatives two times. In 1917, she was one of fifty House members that voted against going to war with Germany. Since her state, Montana, was strongly isolationist, this vote was not a major factor in making her a one term congress person. During the 1920s and 1930s, this social worker continued to work in the areas of social justice and world peace. She was elected to the House of Representatives again in 1941, but this time, she was the ONLY person to vote against declaring war on Japan, December 8th 1941. That vote was a major factor that cost her reelection in November 1942. It was so unpopular, the Capitol Police had to protect her from an angry mob.
Jeanette Rankin was born in 1880, so she was only active in the final stages of the Woman's Sufferage movement. She was the first big beneficiary of that movement and was the first woman elected to the House of Representatives. Jeanette Rankin is still well known in the field of Woman's Studies and the Peace Movement. She also lived long enough, she was able to be interviewed for an University of California (Berkley) Oral History Project in the early 1970s.
More information can be found in the book "Flight of the Dove: The Story of Jeanette Rankin" by Kevin Giles.