Buster Keaton historian and silent film expert David B. Pearson, will be present “Buster Keaton’s World of Comedy, and the Silent Comedy Universe" at the New Orleans Public Library (Latter Branch) on January 5th, 2017, at 7 p.m. Pearson’s talk is part of the New Orleans Film Society’s month long Buster Keaton Retrospective. The “Latter Library” was once the fabulous mansion of silent film star Marguerite Clark, who retired to the city following her Hollywood and Broadway careers.