It was 1944. Martin Gelb, an orthodox Jew from Brooklyn, was behind Nazi lines with a .45 and a Tommy gun. “I was asked to do a lot of strange things, but you follow orders. It did get a little crazy,” the 100-year-old OSS veteran from Hudson, N.H., told the Herald last week. He was part of William “Wild Bill” Donovan’s small crew of intelligence operatives working with the French resistance, hunting down German scientists and rounding up war criminals. He was an expert radio operator who knew Morse code and International Morse code who slipped into France and Germany...