MALEY, John & Isabella Family, 1908 - 1920, submitted by John Maley

MALINOWSKI, Piotr and Francis, 1912 - 1949, submitted by Carol Berger

MASON, 1770 - 1980, submitted by Arthur Oneill

MARTIN, submitted by Ralph J. Beckett

McCHONEY, (from 1855 to present), submitted by Denise Leathem

McCONNEHA, 1882 to present, submitted by Denise Leathem

McDERMOTT, Philip and Mary Ann, 1900, submitted by Charles Edward Doebler

McDOWELL, 1700's - present, submitted by Aaron Joseph

McELHINNY, 1700 - present, submitted by Patty McElhinny

McGILL, 1830 - 1900, submitted by Lessie Jo Langan

McGINLEY, Daniel & Mary, submitted by Penny Friedrichsen

McGONNIGLE, 1865 to present, submitted by Denise Leathem

McGRATH, 1880 - 1965, submitted by Lucille Adkins

McGRAW, 1880 - 1965, submitted by Lucille Adkins

McINTYRE, (from 1871 to present), submitted by Denise Leathem

McKENZIE (MacKENZIE M'KENZIE), 1700 - present various places in Allegheny County submitted by Nancy E. MacKenzie

McPHILIY, 1890 - present, submitted by Janice Young

MEANS, 1830 - 1840, submitted by Jim Means

MELLARS, submitted by Pat Woods
 

MICHAELS, 1850-1930, Homestead, submitted by Ellis Michaels

Milašinčić (often shortened to Milasin) 1890 – Present, submitted by Ray Jones

MILLER, Maurice (B.1925), Father Maurice Prowell Miller (B.1886 D.1965), submitted by Joyce Miller Reese

MINNEAR, 1900 - 2011, submitted by Kenneth Minnear

MOECK, 1860 - 1930, submitted by Jean Gunn

MOLHOLLAND / MULHOLLEN, 1830 - 1860, submitted by Larry Kyle

MONTGOMERY, 1700 - 1784, submitted by Susan King

MOORE, James Henry, 1810 - 1894, submitted by Wendell Goddard

MORFORD, 1830 - present, submitted by Gary Morford

MORRIS, 1921 - 1990, submitted by Pauline Cowell

MOSURAK, Louis, 1900 - 1927, Pittsburgh, submitted by George Mosurak

MURDOCH, 1870 - 1920, Wilkinsburg, submitted by Gale D'Aurio