James Neiss/staff photographerNiagara Falls, NY - Alfred Ligammari, Sr., 88, of Niagara Falls, installed a retrospective exhibit of his paintings at the Niagara Falls Public library. The exhibit is comprised of about 36 works which were created over the course of 70 years and will be on exhibit through the end of September. Ligammari said he first learned how to oil paint as a high school student at Trott Vocational.