sentences:  In 1757, Kennedy served as a Captain in the Royal Navy.He owned what is now Liberty Island in the Upper New York Bay off Manhattan from 1746 to 1758, using it as a summer residence.On 18 December 1792, upon the death of a distant cousin, the 10th Earl (who died without male issue), Archibald was recalled from New York to Culzean Castle in Scotland to succeed to the Earldom and titles as the 11th Earl of Cassilis, and 13th Lord Kennedy.