Periods are required with initials in names in Chicago style, as in "F. Scott Fitzgerald" and "T. S. Eliot," but not with other sorts of capitalized initialisms (most of which include at least two letters, as in "US"; see CMOS 10.4). Also per Chicago guidelines, words derived from proper names should be separated from the name by a space rather than an underscore (see Chicago Manual of Style - 15.23). In addition, the Chicago style requires that time periods be divided into years before dates, like this: "James Buchanan was president from 1857 to 1861." There is no need to divide months or days. For titles, names of publications, forms of address, and other matters where language allows for discretion, writers may use any desired format for clarity's sake. Thus one can write "Dr. J. K. Rowling" or "J. K. Rowling" or even just "Rowling." With respect to titles, the Chicago style allows for both upper- and lowercase letters after the name unless it is necessary to distinguish each instance of the title within the text (for example, when referring to members of a committee). As for names of publications, journals, conferences, etc., these also follow the first rule of English grammar: the subject goes before the object.