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Name High School Grad Year
Ryan OConnlley Baldwin High School Class of 2001
Barbara Oconnor Sacred Heart High School
Barbara Oconnor Langley High School Class of 1973
Bonnie Oconnor Crafton High School
Christopher OConnor Peabody High School
Darlene OcONNOR Sacred Heart High School Class of 1970
Donna Oconnor Holy Innocents High School Class of 1969
Eimear Oconnor Domenec High School Class of 1970
Fredric OConnor Langley High School
Heather Oconnor Churchill Area High School Class of 1976
Jane Oconnor Churchill Area High School
Janie OConnor Churchill Area High School Class of 1978
Jim Oconnor Mt Lebanon High School Class of 1950
Jim OConnor Churchill Area High School Class of 1969
Kathleen Oconnor Churchill Area High School
Kathleen Oconnor St Paul Cathedral High School Class of 1954
Mark Oconnor Bishop Canevin High School Class of 1980
Mary Oconnor St Joseph Class of 1970
Richard Oconnor David B Oliver High School Class of 1967
Richard Oconnor Oliver High School Class of 1967
Rick OConnor Langley High School
Sinead Oconnor Shaler Area Senior High School
Tj OConnor Keystone Oaks High School Class of 1990
Tracy Oconnor St Michaels-Pittsburgh Pa Class of 1985
Helen Odato Baldwin High School Class of 1962
Kelly Oday Brashear High School Class of 1989
Lorraine Oday Elizabeth Seton Class of 1961
Judy ODea Mt Lebanon High School
John Odell Fox Chapel High School Class of 1973
Keth Oden Allderdice High School Class of 1970
Melissa Odenthal Bishop Canevin High School Class of 1989
Roberta Odessio Crafton High School Class of 1959
Diane Odioso Sacred Heart High School Class of 1969
Michael Odom George Westinghouse High School Class of 1978
Patti Odonell Penn Hills Senior High School Class of 1974
Eugene ODonnell Wilkinsburg Senior High School Class of 1978
Kevin Odonnell Plum Senior High School Class of 1996
Lawrence Odonnell Schenley High School Class of 1960
Marlene ODonnell Peabody High School
Mary ODonnell Peabody High School Class of 1977
Maureen Odonnell Bishop Canevin High School Class of 1970
Patricia Odonnell St Justin Class of 1947
Richaed Odonnell South Hills High School Class of 1964
Steve Odonnell South Hills High School Class of 1963
Maureen Odriscoll North Allegheny Interm School Class of 1974
Juanita Oehling Schenley High School
Mark Oehm Brashear High School Class of 1980
Margaret Oehmler North Hills High School
Wendi Oehmler North Hills High School
George Oeler Central Catholic High School
Karen Oerp Mt Lebanon High School
Carol Oesterle St Francis Academy Class of 1967
Gary Oesterle Avonworth Jr Sr High School
Gary Oesterle Mcintyre Shelter School
Gary Oesterle Carrick High School
Richard Ofchinick Woodland Hills Senior High School Class of 1989
Gregory Offner Baldwin High School Class of 1965
Raymond Offner Mt Lebanon High School
Mary OFriel Fox Chapel High School Class of 1975
Virginia OFriel Fox Chapel High School Class of 1984
Doug Ogden North Hills High School Class of 1982
James Ogden North Hills High School Class of 1970
Michael Ogden Schenley High School
Susan Ogden St Benedict Academy Class of 1982
George Ogg Baldwin High School Class of 1980
Helen Ogg South Hills High School
James Ogilvie David B Oliver High School Class of 1961
Karen Oglesby South Hills High School Class of 1966
Michele Ogletree Brashear High School Class of 1983
Beth Ohalloran Allderdice High School Class of 1989
BJ Ohara Peabody High School Class of 1959
Brittany Ohara Allderdice High School Class of 2011
Karen Ohara North Hills High School Class of 1980
Karen Ohara North Hills Senior High School Class of 1980
Nancy Ohara Crafton High School
Patrick Ohara Peabody High School Class of 1986
Tim Ohara Avonworth Jr Sr High School Class of 1975
Denise Ohare Allderdice High School Class of 1977
Karen OHare Carrick High School Class of 1972
Mark Ohella Allderdice High School
Maria Ohl South Hills High School Class of 1961
Nancy Ohl Crafton High School Class of 1963
Harold Ohm St Justin Class of 1962
Amy Ohnhaus Carrick High School Class of 1989
William Ohnhaus Plum Senior High School Class of 1988
Harold Ohnsman South Hills High School Class of 1949
Phil Ohrman Mt Lebanon High School Class of 1970
Kim Oisbet Bishop Canevin High School Class of 1975
Muyo Ojoko Keystone Oaks High School Class of 2009
Edward Okain Baldwin High School Class of 1972
Shirley Okain Keystone Oaks High School Class of 1972
Collen Okeefe Keystone Oaks High School Class of 1983
William OKeefe South Hills High School Class of 1947
David Okl Schenley High School
Diane Oksanan Allegheny High School Class of 1971
Mary Okunewick North Hills High School Class of 1986
Cristal Olack Carrick High School Class of 2000
Elise Olack Carrick High School
Circe Olander Peabody High School Class of 1976
Echo Olander Peabody High School Class of 1977
Julia Olander Allderdice High School Class of 2017
Nancy Olander Baldwin High School Class of 1971
Robert Olander Mt Lebanon High School Class of 1999
Teri Olander Mt Lebanon High School Class of 1974
Rose OLarkin Sacred Heart High School Class of 1958
David Olbum Allderdice High School Class of 1982
James Oldham Allderdice High School Class of 1931
Cindy Oldynski Carrick High School Class of 1984
Rodrigo Olea Woodland Hills High School Class of 1986
Michael Olearchick Fox Chapel High School Class of 1982
Ann Oleary North Catholic High School Class of 1984
Cathy Oleary Keystone Oaks High School Class of 1972
Denise Oleary Brashear High School
Jack Oleary Central Catholic High School Class of 1973
Michael Oleary Wilkinsburg Senior High School Class of 1979
Patrick Oleary Seton La Salle High School Class of 1985
John Olejar Central Catholic High School Class of 1976
Lori Oleksak Keystone Oaks High School Class of 1991
Nicholas Olenik Carrick High School
Julie Olenn Village Academy High School Class of 1990
Amy Oles Plum Senior High School
Carol Olesinski Arsenal Vocational School Class of 1968
Andrea Oleta Bishop Canevin High School Class of 1995
Donna Olhnhausen Carrick High School Class of 1964
Tracy Oli Oakland Catholic High School Class of 1994
Eleanor Oliana Baldwin High School Class of 1958
Deborah Olinick Penn Hills Senior High School Class of 1982
Ann Olisky Peabody High School Class of 1977
Anne Olisky Peabody High School Class of 1977
Ann Olitsky Peabody High School Class of 1977
Anne Olitsky Peabody High School
Sylvia Olivares Fox Chapel High School Class of 1965
Aaron Oliver Allderdice High School Class of 2007
April Oliver Oliver High School
Christy Oliver David B Oliver High School Class of 1995
Jessie Oliver Plum Senior High School
Joni Oliver Peabody High School Class of 1975
Jordan Oliver Brashear High School Class of 2016
Joseph Oliver Oliver High School
Justin Oliver David B Oliver High School Class of 2001
Michael Oliver Taylor Allderdice High School Class of 1992
Nickie Oliver Shaler Area Senior High School Class of 1989
Pattey Oliver Langley High School Class of 1974
Roberta Oliver Plum High School
Shawn Oliver Peabody High School Class of 1991
Susan Oliver Carrick High School Class of 1978
Joanne Oliverio Holy Innocents High School Class of 1972
Robert Oliverio South Hills High School Class of 1961
Evelyn Olivieri Carrick High School
John Olkawski Bishop Canevin High School Class of 1990
Sylvia Olman South Hills High School Class of 1968
Donna Olnhausen Carrick High School Class of 1964
Ed OLoughlin Plum Senior High School
David Olsavsky Carrick High School
Judy Olschenski Schenley High School Class of 1958
Barb Olsen Mt Lebanon High School Class of 1971
Barbara Olsen Mt Lebanon High School Class of 1971
Charles Olsen Fox Chapel High School Class of 1971
Corinne Olsen Mt Lebanon High School Class of 1971
Judy Olshenske Schenley High School
Barb Olson Mt Lebanon High School Class of 1963
Carrie Olson Mt Lebanon High School
Deb Olson Mt Lebanon High School Class of 1973
Deborah Olson Mt Lebanon High School Class of 1973
Roseann Olszewski Carrick High School Class of 1971
Thomas Olszewski Carrick High School Class of 1967
Deanna Olup Carrick High School Class of 1997
Jeffrey Olup Baldwin High School Class of 1979
Tom Olzak North Catholic High School Class of 1991
Doris Olzewki Fox Chapel High School Class of 1983
Daniel Olzewski Fox Chapel High School Class of 1969
Joseph Olzewski Fox Chapel High School
Cathy OMalley Carrick High School Class of 1974
Christi Omalley North Hills High School
Darlene OMalley South Hills High School Class of 1985
Erin Omalley Perry Traditional Academy Class of 1998
Gina Omalley Penn Hills Senior High School
James Omalley Peabody High School Class of 1951
John Omalley Peabody High School
Josh OMalley Carrick High School
Kath Omalley Carrick High School Class of 1977
Kevin Omalley Fox Chapel High School Class of 1976
Kristi Omalley North Hills Senior High School Class of 1991
Kristy Omalley North Hills High School Class of 1991
Lois OMalley Sacred Heart High School Class of 1961
Maureen Omalley Oakland Catholic High School Class of 1990
Nikki Omalley Brashear High School
Thomas Omalley Baldwin High School Class of 1972
Shawn Omally Shaler Area Senior High School
Timothy OMally Baldwin High School Class of 1987
Zeana Omar Allderdice High School Class of 2016
Mary Omara Northgate Jr Sr High School Class of 1995
Maureen OMara Carrick High School Class of 1964
Scott OMara Keystone Oaks High School Class of 1968
Lynne Oncea Keystone Oaks High School Class of 1990
Mary Onda St Benedict Academy Class of 1956
Regina Onda Elizabeth Seton Class of 1967
Marla Ondek St Francis Academy Class of 1993
Dennis Onderick Woodland Hills High School Class of 1996
Dave Ondik Seton La Salle High School
Chris Ondos Baldwin High School Class of 1989
Eric Ondos Baldwin High School
John One Central Catholic High School Class of 1975
Anne Oneal Penn Hills Senior High School
Michael Oneal Keystone Oaks High School Class of 1974
Nathaniel ONeal Peabody High School Class of 2007
Jacqueline Oneil Carrick High School Class of 1964
John Oneil Peabody High School
Martin ONeil Plum Senior High School Class of 1970
Pat Oneil Keystone Oaks High School Class of 1985
Shawneen ONeil Vincentian High School Class of 1979
Thomas ONeil Baldwin High School Class of 1973
Betsey ONeill Penn Hills Senior High School Class of 1972
Bonnie ONeill Allderdice High School Class of 1981
Dennis ONeill South Hills High School Class of 1977
Jen Oneill Carrick High School Class of 1995
John ONeill South Side Catholic High School Class of 1978
Kristin Oneill Baldwin High School Class of 1988
Leann Oneill Peabody High School
Shawneen Oneill Vincentian High School Class of 1979
Richard Oney Baldwin High School
Darryl Onhson Schenley High School Class of 1983
Elizabeth Onodi Elizabeth Seton Class of 1975
McKenzie Oo Langley High School Class of 2005
Jen Oodw Mt Lebanon High School Class of 1983
Mary Oonnor Lawrencevlle Catholic High School Class of 1975
Heather Op Woodland Hills High School Class of 2001
Valarie Op Oakland Catholic High School Class of 1999
Christine Opal Bishop Canevin High School Class of 1976
Richard Opal Carrick High School Class of 1976
Peter Oparnica Carrick High School Class of 1962
Joyce Opdyke Allderdice High School Class of 1983
Vince Opdyke Allderdice High School Class of 1984
Patricia Oper Brashear High School Class of 1989
Catherine Opferman Carrick High School Class of 1971
JoAnn Opferman Bishop Canevin High School Class of 1985
Lisa Opferman Carrick High School Class of 1999
Al Opiela South Hills High School Class of 1966
Sue Opipare David B Oliver High School Class of 1959
William Opipare David B Oliver High School Class of 1968
Steve Oplak North Hills High School Class of 1965

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About Pittsburgh, PA Alumni

The listing of alumni from Pittsburgh, PA includes graduates from 131 schools. To filter results, select a Pittsburgh, PA high school using the links to the right. The Pittsburgh alumni list on this page come from a variety of sources. Clicking one of your friends will give you locations that you can get back in touch with the fellow graduate. To view alumni that graduated in Pittsburgh around your class year, enter your graduation year in the search box at the top of the page. You may also be able to find friends close to your home town. We also have listings for graduates from Millvale, PA, McKees Rocks, PA, or Dormont, PA.

Approximately 24,300 of residents in Pittsburgh (8%) are the normal age for attending high school (15-19). Also, around 15,500 Pittsburgh residents (5%) are the average age for high school seniors (18-19). Population stats are from the United States Census Bureau.