Judge Taylor's age in To Kill A Mockingbird?

Judge Taylor's exact age is never given. He is described as follows;

Judge Taylor was on the bench, looking like a sleepy old shark, his pilot fish writing rapidly below in front of him. Judge Taylor looked like most judges I had ever seen: amiable, white-haired, slightly ruddyfaced, he was a man who ran his court with an alarming informality— he sometimes propped his feet up, he often cleaned his fingernails with his pocket knife.