The Livingston Mansion. Colonel Livingston died June 9th, 1849. Although living in the retirement of a gentleman of wealth and leisure, he often consented to serve the public in offices requiring judgment, industry, and integrity. He was a member of the state Senate on term; and it is a remarkable fact that he was never absent a day from his post inthe Senate Chamber or in the hall of the Court of Errors. He will long be remembered in Poughkeepsie as one of its best citizens.