My great-grandparents lived in a house that apparently served as a house for Union soldiers during the Civil War. I still remember my father & grandma telling me and my cousins when we were young "Don't go into the attic or the basement, ghosts live up there". One time we decided to go into the attic, and there was a little tiny window up there.
I specifically remember looking out the window down the dirt road, and I CLEARLY saw a man wearing a blue soldier outfit with a gun---like the kind that the Union Army had. I stared at the man outside, rubbed my eyes and shook my head, and re-opened my eyes. The man outside was gone; totally vanished. I sprinted down stairs and told my dad what I saw. He just looked at me and said "Yeah, I thought I saw the same exact 'thing' out of that window at your age. Who knows". I went outside later, and stood where that "man" stood, and there was no foot prints or anything.
I still remember that day vividly, and I 100% believe that what I saw was a ghost of a Union soldier and I 100% believe in ghosts. I totally believe that these kids could be seeing ghosts on Kwajalein, especially near this battle site. I don't believe in like Bigfoot or Nessie, but I completely believe in ghosts & aliens. Ok, my story and ramble is over now.