Merl Reagle's Crossword

"Book Notes"
HOW TO PLAY (no pun intended): This puzzle is about a certain group. Twenty of the Down answers are one letter too long for their allotted spaces. Whenever this happens, simply enter that extra letter into the vacant square at the base of that column, below the solid-black row.
                                                       Puzzle 2015 by M. Reagle /

                                 For books by Merl Reagle .. visit WWW.SUNDAYCROSSWORDS.COM

                                                     For a printable version of this puzzle, click HERE

                                                                 For puzzle of 3/8/2015, click HERE

                                                         For Merl's Eraser-Free Sudoku, click HERE