2009 “Words and Visions” Freyberger Gallery, Penn State Berks, Reading, PA 
    1999 “Wars and Weddings” E3 Gallery, NYC, NY 
    1997 “Between Dreams” The Noyes Museum, Oceanville, NJ 
    1995 “Patricia O’Maille, Works on Paper” E3 Gallery, NYC, NY

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    2018 "Let There Be Light and Shadow" Umbrella Arts, NYC, NY     
    2014 "Expressions of the Natural World" Monmouth Museum,  Monmouth, NJ 
    2006 “Collector’s Choice” Umbrella Arts, NY, NY. 
    2006 “ARTView” The City Museum of Washington, DC 
    2006-2008 "Gallery Group" Snyderman-Works Gallery, Philadelphia, PA 
    2005 “ARTView” City Museum, Washington, DC 

    2001-1997 "Gallery Group" Sailors Valentine Gallery, Nantucket, MA 
    2000-1997 "Gallery Group" The Works Gallery, Philadelphia, PA 
    1998 “Patricia O’Maille/Cheryl Bubier” 929 Gallery, Baltimore, MD 
    1995 “Four Americans” Museum of Rochefort en Terre, Brittany, France 
    1995 “Art Maryland” Howard County Art Center, Ellicott City, MD 
    1995 “Sister Dreams” OIA Gallery, NYC, NY 
    1994 “Gallery Group” E3 Gallery, NYC, NY 
    1994 “Patricia O’Maille & Carol Sky” School 33 Art Center, Baltimore, MD 
    1994 “National ’94 Small Works” Cobleskill, NY 
    1994 “Rutgers National” Rutgers University Gallery, Camden, NJ 
    1994 “Her Hands” Kuhn Library Gallery, University of Maryland, Catonsville, MD 
    1993 “Secrets” Book Project, Maryland Art Place, Baltimore, MD 
    1992 “Maryland on View” Maryland Art Place (MAP), Baltimore, MD 
    1991 “Critics Picks" Maryland Art Place (MAP), Baltimore, MD 

    1989 “Works on Paper” Beaver/Arcadia College Art Gallery, Philadelphia, PA