Secretary of State William Seward wrote it, and Abraham Lincoln issued it, but much of the credit for the Thanksgiving Proclamation should probably go to a woman named Sarah Josepha Hale.
A prominent author and magazine editor, Hale is credited with writing “Mary Had a Little Lamb,” originally known as “Mary’s Lamb,” but her professional resume goes well beyond the nursery rhyme. Hale helped found the American Ladies Magazine, which she used a platform to promote women’s issues. In 1837, she was offered the editorship of Godey’s Lady Book, where she would remain for more than 40 years. She shepherded the magazine to a circulation of more than 150,000 by the eve of the Civil War and turned it into one of the most influential periodicals in the country.
In addition to her publishing work, Hale was a committed advocate for women’s education (including the creation of Vassar College in Poughkeepsie, New York) and raised funds to construct Massachusetts’ Bunker Hill Monument and save George Washington’s Mount Vernon estate.