LESLIE KOREN, Staff Writer The Record (Bergen County, NJ) 07-28-2001 MISSING - AND MISSED -- NEW JERSEY HAS 1,500 GONE INTO THIN AIR By LESLIE KOREN, Staff Writer Date: 07-28-2001, Saturday Section: NEWS Edition: All Editions -- Two Star B, Two Star P, One Star B Martha Young calls the Nutley police every month. She marks the date on her calendar, although it is an unnecessary reminder. Young's daughter, Susan Walsh, left her apartment to see a friend, promised to return in a half-hour, and was not seen again. That was five years ago. Suffering from cancer and halfway through a divorce, Mar...