found: Her A picture book of cats, c1991: CIP t.p. (Joanne Mattern) data sheet (b. Mar. 1963)
found: Joseph E. Murray and the story of the first human kidney transplant, c2003: CIP t.p. (Joanne Mattern) data sheet (Mattern, Joanne, b. March 5, 1963)
found: Peyton Manning, 2006: eCIP t.p. (Joanne Mattern) data view (Joanne Medlock Mattern)
found: scholastic.com, Sep. 14, 2011 (author of nonfiction books for children; lives in the Hudson Valley of New York State)
found: linkedin.com, Sep. 14, 2011 (formerly an editor for Troll Associates; attended Hartwick College, 1981-1985; now a self-employed freelance writer)
found: joannemattern.com, Sep. 14, 2011 (b. in Nyack, New York)