“The Greater Journey: Americans in Paris’’ author David McCullough was the main attraction at Tuesday morning’s “Books for Breakfast’’ event benefiting 826 Boston, a local writing center for kids. McCullough not only pledged $1,000 to help fund the organization’s many programs, but also gave a mid-speech shoutout to Cambridge Typewriter owner Tom Furrier, who had just worked on McCullough’s own machine. Furrier told us that McCullough writes all of his books on a 1946 Royal KMM typewriter that he bought in the 1960s. Two-time Pulitzer Prize-winner McCullough told the audience that, yes, it would be faster to write on a word processor, but he doesn’t mind being slow. Whatever he’s doing, it seems to be working well for him. The breakfast was held at WilmerHale on State Street.