- M., Harry
- Mac, Barbara Lee
- Mac, Johnny SEE: McKearn, John R.
- Mac, Tony
- Mac & Jake SEE: Yelvington, Malcolm
- MacAdoo, Richard
- MacDonald, Bruce
- Mach, Leon
- Mache, Billy SEE: Killen, Billy J.
- Mack, Bill
- Mack, Bobby
- Mack, Earl
- Mack, Floyd SEE: McDaniel, Floyd
- Mack, George
- Mack, Jamie
- Mack, Jeani
- Mack, Patti
- Mack, Rex SEE: Sanchez, Mike
- Mack, Sid SEE: Cloud, Paula
- Mack, Warner
- Mack & Gwen
- Macklin, Billy
- MacPherson, Sandy SEE: Brazell, Nicky
- Macree, Vincent
- Mad Lads
- Madara, Johnny SEE: Dale & The Cashmeres
- Madden, Chuck
- Madden, Doyle
- Madden, Gregg
- Madden, John
- Madden, T.J. SEE: Carter, Tom
- Maddin, Jimmie
- Maddox, Cal
- Maddox, Fred
- Maddox, Johnny SEE: Campi, Ray
- Maddox, Rose
- Maddox Brothers & Rose
- Maddy Brothers
- Madera, Johnny SEE: Wayne & Ray
- Mack, Zelma SEE: McDaniel, Floyd
- Madson, Ronnie SEE: Lane, Johnny
- Mae, Dottie
- Mae, Lonnie
- Magic Sam
- Magnificent Seven
- Mahady, Jack SEE: Day, Archie
- Maheu, Pierre
- Main, Gordy SEE: Cerf, Chris
- Majestics
- Mal-3D's SEE: Parker, Wayne
- MaLaine, Kathy SEE: MaLaine Sisters
- MaLaine Sisters
- Mallett Brothers SEE:
 - Mallie Ann
- Malloy, Vince SEE: Maloy, Vince
- Malone, Ronnie
- Maloy, Vince
- Maltais, Gene
- Malvin, Artie
- Mancuso, Joey
- Mandel, Johnny SEE: Lesley, Alis
- Manis, Georgie
- Mann, Carl
- Mann, Chuck
- Mann, Frankie
- Mann, Glenn
- Mann, Johnnie SEE: Burnette, Johnny; Cochran, Eddie; Daret, Darla; Engel, Scott; Glasser, Dick; Knox, Buddy; Vee, Bobby
- Mann, Johnny
- Mann, Pete
- Mann, Plez Gary
- Mann, Ricky SEE: Coachmen
- Manning, Chuck
- Manning, Don SEE: Palmer, Joy
- Manning, Linda
- Manning, Marty SEE: Draper, Rusty; Paul, Bunny
- Mans, Shorty
- Mansel, Red
- Manship, Jimmy
- Manship, Judy SEE: Manship, Jimmy
- Manso, Burrie
- Manual, Abe SEE: Jimmy & Johnny
- Manuel, Larry
- Maphis, Joe
- Maples, Pee Wee
- Mara, James
- Mara, Tommy
- Marascalco, John SEE: Burnette, Dorsey
- March, Tony
- Marcus Brothers SEE: Brothers
- Marino, Sandy
- Marion, Al
- Maris, Tommy
- Marker, Morty
- Marks, Steven
- Marksmen
- Marlow, Mickey SEE: Four Counts
- Marlow, Rickey
- Maroni, Chuck
- Marquis, Dick
- Mars, Dick SEE: Dinning, Jean
- Marshall, Jack SEE: Greene, Nick; Hargrave, Ron; Mitchum, Robert; Williams, Tex
- Marshall, Jean SEE: Hinson, Patsy Ann
- Marshall, Dick SEE: Night Hawks [2]
- Marshall, George M.
- Marshall & Wes SEE: Jodimars
- Martel, Marcel
- Martel, Mimi SEE: Sandy, Bob
- Martell, Freddie SEE: Terry, Dan
- Marterie, Ralph SEE: Draper, Rusty
- Martin, Alan
- Martin, Andy
- Martin, Barry
- Martin, Benny
- Martin, Bill SEE: Lane, James
- Martin, Billy [1]
- Martin, Billy [2]
- Martin, Bob
- Martin, Bobby
- Martin, Carl SEE:
 - Martin, Chuck
- Martin, Dave SEE: Temple, Bob
- Martin, Don
- Martin, Ernest SEE:
 - Martin, Gene
- Martin, Grady
- Martin, James SEE:
 - Martin, Janis
- Martin, Jean
- Martin, Jerry
- Martin, Jimmie
- Martin, Jimmie [2]
- Martin, Jimmy
- Martin, Joe SEE: Sherrell, Bill
- Martin, Kenny
- Martin, Kenny Lee
- Martin, Leroy
- Martin, Mamie
- Martin, Marty
- Martin, Pete
- Martin, Red
- Martin, Roger
- Martin, Ronnie
- Martin, Slim SEE:
 - Martin, Tommy
- Martin, Wilbur SEE: Sundowners [2]
- Martin, Woody SEE: Singer, Johnny
- Martin Brothers
- Martin Sisters
- Martindale, Donnie
- Martindale, Wink
- Marv & Patty SEE: Rainwater, Marvin
- Marvello, Bruce
- Marveluss Mickey
- Marvin, Eddie
- Marvin, Ken
- Marvin, Paul
- Mary Ann & All Star Quartette SEE:
 - Mashburn, Jack
- Masingill, O.B. SEE: Miller, Clint; Spencer, Bob
- Mask, James
- Mason, Billy
- Mason, Dick
- Mason, Jerry
- Masonics
- Massengale, Burt SEE: Griffith, Andy
- Massey, Bill SEE: Dove, Jerry; Quinteros, Eddie
- Massey, Billy
- Massey, Charlie SEE:
 - Massey, Delbert SEE:
 - Massey, Sally
- Masters, Rex
- Masters, Sammy
- Masters Family SEE:
 - Match, Billy SEE: Killen, Billy J.
- Mathews, Hank
- Mathis, Dean & Marc SEE: Brothers
- Mathis, Ernie
- Mathis, Johnny
- Mathis, Mike
- Matt, Dee
- Matthew Brothers SEE:
 - Matthews, Guy
- Matthews, Jerry
- Matthews, Mark SEE: Nash, Charles
- Mattice, Bob
- Mattingly, Jesse
- Matts, Merle, II
- Matys Brothers
- Mauphin, Johnny
- Maupin, Ramon
- Mauricio
- Mavericks
- Mavericks [2] SEE: Gerard, Harvey & The Mavericks
- Maximilian SEE: Uballes, Max
- Maxwell, Diane
- Maxwell, Johnny SEE: Smith, Betty
- May, Billy SEE: Paul, Bunny
- May, Haskell
- May, J.R. SEE:
 - May, Linda
- Maybee, Charley
- Mayberry, Howard
- Mayes, Berdine
- Mayes, "Little" Herbie
- Mayes, Verlin
- Maynard, Lloyd
- Maynie & Howie
- Mayo, Danny
- Mayo, Ralph SEE: Smith, L.C.
- Mayo, Ray
- Mays, Bredice
- Mays, Carl
- Mays, Wilson SEE:
 - Mc, Bobby
- McAdams, Johnny
- McAlister, Mike
- McAlvain, Eddie SEE: Koefer, Bobby
- McArthur, Ray
- McAuliff, Leon, 11 SEE: Various Artists (Brite Star)
- McAuliffe, Leon
- McBee, Ronnie
- McBride, Bobby
- McBride, Dale
- McBride, Jim SEE: Rash, Curley
- McBride, Lee
- McCall, Darrell
- McCall, Norma
- McCandless, Dave
- McCarthy, Dela SEE: Stevens, Jimmy
- McCarver Sisters
- McClanahan, Mac
- McClarey, Butch
- McCleland, Tommy SEE: Emcees
- McCollister, Raymond SEE: Coral, Betty
- McCollough, Lloyd
- McCollum, Johnny
- McConnell, Tommy
- McCorkle, Phil SEE: Saxons
- McCormick, George
- McCormack, Keith SEE: Rock & Rollers
- McCormick Brothers
- McCown, Ronal
- McCoy, Charlie
- McCoy, Jay
- McCoy, Ray
- McCoy, Red SEE: Busbice, Wayne
- McCoy, Tully SEE:
 - McCoys
- McCray, G. SEE: Beach, Ray
- McCray, Mack
- McCrory, Jim
- McCue, Sam
- McCullah, Earl SEE:
 - McCullouch, Jonnie
- McCullough, Cecil
- McCullough, Lloyd SEE: McCollough, Lloyd
- McDaniel, Coy SEE: Potter, Bobby
- McDaniel, Floyd
- McDaniel, Frank SEE: Baldwin, Tommy
- McDaniel, Luke
- McDaniel, Mel
- McDaniels, Jimmy SEE: Bennett, Boyd
- McDonald, Jim
- McDonald, Ken
- McDonald, Rusty
- McDonald, Scott
- McDonald, Skeets
- McDowell, Bobby
- McDowell, John SEE:
 - McDowell, Judy SEE: Smart, Jimmy
- McDowell, Paul
- McDuff, Freddy
- McFarlin, Ronnie
- McGee, Bob SEE: Spires, Endom
- McGhee, Paul
- McGill, Clarence
- McGill, Jerry
- McGill, Larry
- McGillis, Butch SEE: Kemp, Evan; Rock-A-Tunes
- McGinnis, Doug
- McGinnis, Wayne
- McGlin, Eddie
- McGonnigle, Mel
- McGraw, Jimmy SEE: Cline, Patsy; Miller, Eddie; Miller Brothers
- McGraw Brothers
- McGuire, Lowell
- McGuirt, Candy Man SEE: Fuller, Johnny
- McHugh, Jimmy
- McIntyre, Chester
- McIver, D.F.
- McKay, Scotty SEE: Lipscomb, Max
- McKearn, John R.
- McKee, Randy
- McKennon, Kenny
- McKinney, Eddie
- McKinnon, Don
- McKinnon, Harold
- McKinzie, Larry
- McKown, Gene
- McLean, Alton SEE: Bradshaw, Jimmy
- McLean, Donald SEE: Bradshaw, Jimmy
- McLean, Phil
- McLeod, Ron
- McMakin, Bill
- McMillin Brothers
- McNabb, Cecil, Jr.
- McPeak, Henry
- McQueen, Cager SEE:
 - McQuitty, Dave SEE: Viscounts
- McRae, Arvis
- McRay, Shades
- McReynolds, Jim & Jesse SEE:
 - McRill, Chandos
- McVoy, Carl
- Mead, Glenn
- Mead, Monte
- Meadows, Larry
- Mears, Gary SEE: Casuals
| - Medallions
- Medina, Rudy
- Meers, Arvil
- Megatons
- Meggs, Ken SEE: Haney, Bill
- Meil, Terry SEE: Lou & Ginny
- Meister, Gary SEE: Dreamers
- Meloaires SEE: Teen Tones
- Melody Cowhands SEE: Warrick, Red
- Melody Maids
- Melody Mates
- Melody Rockers SEE: Scott, Sherree
- Melson, Joe
- Melson, Lee (Red)
- Melton, Ray
- Memphis Kings SEE: Willis, Don
- Mercer, Jerry SEE: Felts, Narvel
- Mercer, Wally
- Merckson, Maggie SEE:
 - Meredith, Buddy
- Meredith, Marv SEE: Ron & Joe
- Merlin, Jack
- Merlino, Gene SEE: Burgess, Dave
- Merrill, Bob SEE: Merrill, Buddy
- Merrill, Buddy
- Merrill, Genia
- Merrill, Jimmy
- Merritt, Leon SEE: Hofner, Adolph
- Merritt, Neal
- Merry Lou
- Merson, Mike
- Metis, Frank SEE: Rand, Joey
- Metko, Mike SEE: Brother Zee & The Decades
- Metropolitans
- Mettert, Calvin
- Mettis, Frank SEE: Shaw, Sandy
- Meyer, Al
- Miamians
- Michael, Teddy Lee
- Michaels, Mickey
- Michaels, Paul
- Micheals, Joey
- Michel, Xavier SEE: Fender, Freddie
- Michelsen, Ray
- Mick, Fred
- Mic's Masters
- Middleton, Gary
- Midnighters
- Midnighters [2] SEE: Gaida, Bill
- Midnighters [3]
- Mighty Five
- Mike & Jim
- Mike & Nancy SEE: McAlister, Mike
- Mikel, J.
- Mikesh, Albert
- Milam, Jerry SEE: Faire, Johnny
- Milano, Bobby
- Miles, Phil SEE:
 - Miles, Tommy SEE: Luck, Randy
- Miley, Lonnie
- Miller, A. SEE: Carter, Bobby
- Miller, Arlie
- Miller, Bill Clay SEE: Romano, Don
- Miller, Bingo
- Miller, Bob
- Miller, Buddy
- Miller, Carl
- Miller, Chet SEE: LaFever, Bernie
- Miller, Chuck
- Miller, Clint
- Miller, Darnell
- Miller, Dave
- Miller, Dick
- Miller, Don
- Miller, Donny
- Miller, Eddie
- Miller, Frankie
- Miller, Hoyle
- Miller, Jerry
- Miller, Jim
- Miller, Jimmy SEE: Miller Brothers
- Miller, Junne
- Miller, Knobs SEE: Casey, Al
- Miller, Lee SEE: Cline, Patsy; Miller Brothers
- Miller, Mike
- Miller, Ray
- Miller, Pinky
- Miller, Rich
- Miller, Roger SEE: Tubb, Justin
- Miller, Ronnie
- Miller, Russ
- Miller, Scott
- Miller, Sonny
- Miller, Vernon SEE: Joe & His Troubadors
- Miller, Warren
- Miller, Wilbert SEE: Sayre, Duane
- Miller Brothers
- Miller Brothers [2]
- Miller Family SEE:
 - Miller Sisters
- Millet, Lou
- Millikin, Curley
- Millionaires
- Millionaires [2]
- Mills, Chuck
- Mills, Hank
- Mills, James SEE: Bailey's Nervous Kats
- Millsap, Bob
- Milo, Skip
- Mils, Telli W. SEE: Willet, Slim
- Milton, Fred
- Mims, Norris
- Mims, Paul
- Mims, Slim SEE: Fay, Patti
- Minimi, Ross
- Minnesota Marv SEE: Blihovde, Marv
- Minor, Dorothy
- Minter, Pat
- Mints
- Mishoe, Watson
- Miss Georgia
- Miss Nikki & The No-Names
- Mississippi Valley Boys
- Mitcham, Ray
- Mitchell, Betty SEE:
 - Mitchell, Jimmy
- Mitchell, Lee
- Mitchell, Marlon "Madman"
- Mitchell, Steve
- Mitchell, Thomas
- Mitchell, Tommy
- Mitchner, Dick SEE: Original Country Gentlemen
- Mitchum, Robert
- Mize, Billy
- Mizell, Hank
- Mizzell, Bobby
- Mobley, Sylvia
- Moffatt, Tom
- Mojo Men
- Molleen, Ronnie
- Mollette, Jack SEE: Leonard, Judy
- Monaco, Angie SEE: Angie & The Monoco's
- Monagrams
- Monarchs SEE: Mills, Chuck
- Monarchs [2]
- Monarchs IV SEE: Monarchs [2]
- Monday, Florian
- Monday, Frank
- Monday, Lauren
- Mondo
- Money, Comer
- Money, Curley
- Monroe, Homer
- Monroe, Smiley
- Montague, Grady SEE: Stewart, Jimmy
- Montagues
- Montana, Patsy
- Montana, Tex
- Montana Slim SEE: Carter, Wilf
- Monte, Vinnie
- Montell, Freddie
- Monterays
- Montereys
- Montereys [2]
- Montgomery, Gene
- Montgomery, Gray
- Montgomery, Harold
- Montgomery, Joe
- Montgomery, Marvin SEE: Allen, Jeanie; Ballard, Jerry; Channel, Bruce; Shaw, Arlane
- Montgomery, Peanut, III
- Montgomery, Rick
- Montgomery, Robin
- Montgomery's
- Moods
- Moody, Clyde SEE:
 - Moon, Joe
- Moon, Norman
- Moon, Slim SEE: Frye, Norm
- Mooney, Glenn
- Mooney, Hal SEE: Milano, Bobby
- Mooney, Ralph
- Moonlighters
- Moonriders
- Moore, Bernie
- Moore, Bill SEE: Nesbitt, Jim
- Moore, Bob SEE: Box, David; Draper, Rusty; Graves, Billy; Orbison, Roy
- Moore, Cecil
- Moore, Charley SEE: Moore, Turner
- Moore, David
- Moore, Donny Lee
- Moore, Eddie
- Moore, Hank
- Moore, Jan
- Moore, Jerry
- Moore, Johnny
- Moore, Larry
- Moore, Lattie
- Moore, Lattie [2]
- Moore, Lucky
- Moore, Marvin
- Moore, Merrill
- Moore, Mike
- Moore, Percy SEE: Lloyd, Wilford
- Moore, Ray
- Moore, Red
- Moore, Ronnie
- Moore, Roy E.
- Moore, Sandee
- Moore, Scotty
- Moore, Sparkle
- Moore, Turner
- Moore, Wade SEE: Wade & Dick
- Moore, Wally SEE: Coldiron, Curley
- Moore, Willa Jean SEE:
 - Moreland, Prentice
- Moreland, Richard
- Moreland, Tommy
- Morelli, Carl
- Morgan, Bill
- Morgan, Charlie SEE: Feathers, Charlie
- Morgan, Dan SEE: Nightcaps
- Morgan, Dean
- Morgan, Gene
- Morgan, George
- Morgan, George W. SEE:
 - Morgan, Janece
- Morgan, Joe
- Morgan, Maggie
- Morgan, Rocket
- Morgan, Rocky
- Morgan, Jim SEE: Bond, Eddie
- Morgan Twins
- Morkoe, Jerry
- Morland, Richie SEE: Moreland, Richard
- Mor-Loks
- Morningstar, Jackie SEE: Morrell, Jackie
- Morra, Tony
- Morrell, Jackie
- Morrie, Tiny
- Morris, Artie
- Morris, Calvin SEE: Davis, Hank
- Morris, Chick
- Morris, Ernie
- Morris, Gene
- Morris, Glenn
- Morris, Jack
- Morris, Lamar
- Morris, Melvin
- Morris, Red SEE: Williams, Buzz
- Morris, Rod
- Morris, Skip
- Morris, Vance
- Morris Brothers Band
- Morrison, Bill
- Morrison, Dave SEE: Nite Rockers [2]
- Morrison, Freddie
- Morrison, Harold
- Morrison, Jim
- Morrison, Jim [2]
- Morritt, Bob
- Morse, Ella Mae SEE: Ford, Ernie
- Morton, Ray
- Morton & Honey SEE: Stayton, Jimmy
- Moseley, Semie SEE:
 - Mosier, Red SEE: Rash, Curley
- Mosley, Dennie
- Moss, Bill SEE: Zario, Rex
- Moss, Roy
- Mote, Danny
- Motola, Georga SEE: Ashley, John
- Mott, Charley SEE: Joke & The Jokers
- Mount Olive Quartet SEE:
 - Mule-Skinners
- Muleskinners SEE: Fendermen
- Mulkey, Truman
- Mullan, Ned SEE: Roller, Lonesome Long John
- Mullican, Moon
- Mullin, Dee SEE: Dee & Patty
- Mullinax, Dee SEE: Dee & Patty
- Mullins, Dee SEE: LaBeff, Tommy
- Mullins, Doris SEE: Mullins, Zeke
- Mullins, Lonnie
- Mullins, Moon
- Mullins, Tony
- Mullins, Zeke
- Mullins Brothers SEE: Lightfoot, Charlie
- Mumford, Gene
- Mundy, Bill
- Mure, Billy SEE: Bennett, Joe; Finnegan, Larry; Gallahads; Hickey, Ersel; Isle, Jimmy; Jackson Brothers [1]; McDonald, Ken; Shaw, Ricky; Simpson, Hoke
- Murphy, Beth
- Murphy, Chuck
- Murphy, Don
- Murphy, Hank SEE: Vickers, Charles
- Murphy, Jim
- Murphy, Jimmy
- Murphy, Kenny SEE: Western Playboys
- Murphy, Rock
- Murphy, Tiny
- Murphy, Vince
- Murphy Family SEE:
 - Murray, James SEE: Johns, Sammy
- Murray, Jim
- Murray, Ray
- Musical Linn Twins SEE: Linn Twins
- Musical-Aires SEE: Various Artists (Starday)
- Musicasters
- Mustard & Gravey
- Myers, Al
- Myers, Bill SEE: Western Swingsters
- Myers, Jim
- Myers, Jimmy
- Myers, Norella SEE: Myers, Orella
- Myers, Orella
- Myers, R. SEE: Bates, Lucky
- Myrick, Weldon
- Mysterions
- Mystery, Johnny
- Mystery Trio
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