As President of the Michigan Equal Suffrage Association, E.C. Warriner supported women's equality and publicly spoke in favor of women's suffrage. A letter (pictured left) from Alice Paul is addressed "Dear Suffrage President." Paul chaired the Congressional Committee of the National American Woman Suffrage Association (NAWSA). In 1916, she formed the National Woman's Party - which departed from NAWSA's state-by-state strategy. The National Woman's Party was focused on the federal remedy of Amending the U.S. Constitution to recognize the political equality of women. This letter can be found in Warriner's papers, held by the Clarke Historical Library.
In 1914, while addressing the "Winter Club" in Saginaw Michigan in a speech titled "A History of the Suffrage" he wrote "I am fully persuaded in my own mind of the justice of the demand of the women for a right to vote." Warriner was a member of the Michigan Equal Suffrage Association, and helped Michigan to become one of the first states to ratify the 19th Amendment, which recognized women's Constitutional right to vote.