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Hannibal Hamlin took possession of this box-like office located at Hampden’s “upper corner” (Route 9 and 1A) when he and his family moved to Hampden in 1834.  He practiced law from this office until the time of his inauguration as Vice President of the United States under President Abraham Lincoln.  After Hamlin left Hampden and moved to Bangor, the office was moved back and became part of a residential home.  In 1987, the law office was detached from the home and moved to its present location on the grounds of the Kinsley House Museum and Archive.  The law office is now used as a museum focusing on the life of Hamlin.