Just sailed and rest of my family just had birth certificates and DLs. Stupid me, I didn't realize until weekend before cruise (had been on another non-cruise trip that month with youngest and was preoccupied) that my first name spelling on birth certificate is different from way I have spelled it my entire life on EVERYTHING. So, after initial panic subsided, can tell you is possible to have passport in less than 36 if necessary (for a price)