Feb. 12—After SWAN Park opened almost six years ago, Jerry Joyce settled in as its unofficial, unpaid, outspoken caretaker. Joyce, who lives near the south-side regional park, can still envision what drove him. Weeds approaching 3 feet high had sprouted on the unused baseball field. Joyce in the 1960s played baseball at St. John's University in New York. As a purist of his sport, he said the ...