Question: What is the birth date of one of the people baptized in Saint Aidan's Church and Rectory who is seen as an icon of modern American liberalism?
Sentence (from "St. Aidan's Church (Brookline, Massachusetts)"): The church is notable as the parish which was attended by Joseph P. Kennedy and his family when they were living on Beals Street; it was the site of the baptism of both John F. Kennedy and Robert F. Kennedy.
Relevant evidence: Yes