- M. Carlin, Joseph
- M. Long, Lucy
- MATCH
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- Ma, Joy
- Ma, Yeong-shin
- Ma, Zuo
- Maandag, Nick
- Maberly, Becca
- MacAdam, Alfred
- MacBain, Hamish
- MacBride, Stuart
- MacDonald Denton, Kady
- MacLeod, Janice
- MacLeod, Kathy
- Maccarone, Grace
- Mach, AKI Delphine
- Machel, Graca
- Machiavelli, Niccolò
- Mack, Catherine
- Mackail, J. W.
- Mackay, Malcolm
- Macken, Walter
- Mackenzie, Dr Richard
- Mackrell, Judith
- Macmillan
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- Macy, Beth
- Macías, González
- Madavane, K.
- Madden, Matt
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- Magazine, The Editors of O, the Oprah
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- Magruder, Nilah
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- Maitland, Sara
- Maizes, Victoria
- Makepeace Thackeray, William
- Maksymowicz, Lidia
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- Malerman, Josh
- Maleska, Eugene T.
- Malhotra, Reenita
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- Mandanna, Sangu
- Mandel, Emily St. John
- Mandela, Nelson
- Mandelo, Lee
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- Manley, Curtis
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- Mann, Thomas
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- Manners, Emma
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- Mansfield, Katherine
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- Manuel, Zenju Earthlyn
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- Marcellino, Fred
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- Marchiano, Lisa, LCSW, NCPsyA
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- Marcus, Tom
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- Marie, Racquel
- Marie, Racquel
- Marin, Sanna
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- Marks, Howard
- Marks, Nadia
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- Maroo, Chetna
- Marr, Andrew
- Marroquin, M. L.
- Marrs, John
- Marsh, Beezy
- Marsh, Katherine
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- Martin, Ann M.
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- Martin, Bobby
- Martin, Jr., Bill
- Martin, Orion
- Martin, Ruth
- Martin, Steve
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- Martinez, Maddie
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- Marx, Karl
- Marzano-Lesnevich, Alex
- Masen, Kat T.
- Masini, Beatrice
- Mason, Daniel
- Massey, E. L.
- Massingham, H. J.
- Massironi, Daniela
- Mathers, Luke
- Matheson, Richard
- Mathieson, Iona
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- Matich, Meg
- Matsuda, Andy
- Matt, Joe
- Matthews, Airea D.
- Matthews, Mel
- Matthews, Michael D.
- Mattingly, Jayne
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- Maurer, Christopher
- Maurer, Richard
- Mavin, Duncan
- Mavir, Heidi
- Maxey, Cyndi
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- Maxwell, Glyn
- May Alcott, Louisa
- May Alcott, Louisa
- May, Sarah
- Maya
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- Maynard, Christopher
- Maynard, Frances
- Mazzucchelli, David
- Mbolela, Emmanuel
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- McBratney, Sam
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- McDowell, Megan
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- McElroy, Griffin
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- McGovern, Steph
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- McIntyre, Marie G., Ph.D.
- McIntyre, Michael
- McKay, Alicia
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- Melville, Herman
- Melville, Herman
- Mendelson, B. J.
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- Mendelssohn, Michèle
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- Mitchell, Margaret
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- Mitton, Tony
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- Mongredien, Sue
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- Montgomery, L. M.
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- Moore, Sarah
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- Morgan Jones, Chris
- Morgan, Eleanor
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- Morgan, Gaby
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- Morgan, Sally
- Morgan, Sally
- Morgan, Sarah
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- Morimoto, Shoji
- Morjaria, Hamish
- Morland, Paul
- Morland, Polly
- Morley, Christine
- Morley, Karen
- Morpurgo, Michael
- Morr, Gemma
- Morris, Charles R.
- Morris, Jonathan
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- Morris, Martha Clare
- Morrison, Robbie
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- Morrow, Bethany C.
- Morstad, Julie
- Mortimer, Maddie
- Morton, Carson
- Morton, Eliza
- Morton, Elizabeth
- Morton, Kate
- Mosco, Rosemary
- Mosel, Arlene
- Moses, Brian
- Mosier, Leslie
- Moss, Emma
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- Moss, Sarah
- Moss, Sarah
- Moss-Rider, Fay
- Mosse, Kate
- Motter, Russell
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- Mukherjee, Udayan
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- Mull, Joe
- Mullen, Georgie
- Mulley, Clare
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- Munoz Ryan, Pam
- Munoz, Isabel
- Muraresku, Brian C.
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- Murgia, Madhumita
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- Murphy, Glenn
- Murphy, Jill
- Murphy, Kelly
- Murphy, Macken
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- Murphy, Stef
- Murphy, Tim
- Murray, Annie
- Murray, Diana
- Murray, J.F.
- Murray, Lily
- Murray, Simon
- Murray-Browne, Kate
- Murrell, Deborah
- Musil, Robert
- Muth, Jon J
- Myer, Ilana C.
- Myer, Sarah
- Myers, Ernest
- Myers, Laurie
- Myers, Nneka
- Myrick, Leland