Alec Baldwin shared a heartfelt tribute to his mother, who died Thursday at age 92. The actor, one of six children and the oldest of four acting brothers, shared photos of his mother as a young woman and in her later years. “Carol M. Baldwin, mother of actors Alec, Daniel, William and Stephen Baldwin and two daughters, Elizabeth and Jane, died today in Syracuse, New York,” he posted on Instagram Thursday night. “She met her future husband, Alexander R. Baldwin Jr., of Brooklyn, NY, while both attended Syracuse University,” he continued. “In 1954, Alec, as the father was also called, moved the …