Google is honoring Harriet Tubman today. In most images, especially on postage stamps, she appears as a sweet if rather haggard old woman, often with a wrap around her hair. Google uses a younger version, with the famous guide to the Underground Railroad holding a lantern. The image below, taken from a book, appeared in an exhibition of CIvil War era photographs and other images I reviewed at the National Potrait Gallery last year. Most images honor her accomplishment; this one depicts her resolve.