 The earliest recorded person with the last name of Dassow is Hinrich Dassow who was born about 1610 in Mecklenburg-Schwerin and died January 16, 1690 in Biestow, Germany.He married in 1640 and had five children including Hans Dassow.There were 48 people with the last name of Dassow who migrated to the United States via ship between December 10, 1853 and April 7, 1890.