G. Paul Burnett/The New York Times “I don’t want to preside over an institution that puts on exhibitions that have limited popular appeal.” Louise Mirrer THE "puppet" scuttlebutt - that her latest career move has strings attached and that she's not the person pulling them - rankles Louise Mirrer. Hence that furrow in the brow of the otherwise self-possessed president of the New-York Historical Society, who is inaugurating her tenure with a $5 million blockbuster exhibition on Alexander Hamilton, a founding father hitherto best known for decorating $10 bills with his somber visage. According to some historians, Ms. Mirrer...