CASTINE, MAINE.- Clark Battle Fitz-Gerald, a sculptor who moved to Castine in 1956 to find artistic inspiration in the quiet and simplicity of small town life, died Monday morning at home. He was 87 and had been in declining health for some months, but was drawing and planning new works up until his death. A St. Louis native, Fitz-Gerald achieved renown as a sculptor of large public pieces of art installed in prominent locations in cities, churches, and universities in the United States and abroad. Maine Maritime Academy, George Stevens Academy, Colby College, the University of Maine all have large-scale works by Fitz-Gerald on their campuses. One of his most notable Maine pieces, and typical of Fitz-Gerald's themes, "Continuity of Community," is an enormous aluminum mobius strip in Bangor's West Market Square. Born in 1917 in St. Louis, Fitz-Gerald attended John Burroughs school and graduated from Philadelphia College of Art in 1940.