Q: This poster picturing President Theodore Roosevelt has been in our family for a long time. Underneath his portrait, it says "Keep up the fight for Americanism" followed by several lines of text and Roosevelt's signature. Is the poster valuable?

A: Your poster’s well-known photo of Theodore Roosevelt (1858-1919; U.S. president, 1901-1909) was taken in 1915 by New York photographer Pirie MacDonald. The American Defense Society planned to distribute the posters to schools and patriotic organizations. After Roosevelt died, proceeds of the sale of the posters benefited the Roosevelt Memorial Fund of the American Defense Society. Roosevelt was the honorary president of the society, a nationalist group founded in 1915. The lines of text are from a letter he wrote to the society to be read at its All-American Benefit concert on Jan. 5, 1919 (one day before Roosevelt died). He felt all immigrants should learn to speak English and should identify themselves as Americans, not "hyphenated Americans." Value of your poster: $50-$100.