Hello all--I am new to this site and very much an amateur. I hope that this is the correct place to ask my question, if not, my apologies and please direct me to the proper site.  Anyway, I have an autograph from Martin Luther King Jr. given to me personally on a program with the date printed on it.  He signed it for me on March 31, 1968.  I have often wondered, if there are any autographs from Rev. King that are dated later than mine, as he was assassinated 4 days after he signed for me, on April 4, 1968. Does anyone know of any autographs closer to his date of death than mine? If not, does anyone have any ideas how to determine if there are any later autographs known to be out there?  Thanks for any assistance you all can give.