Six decades after she first entered the United States, a 98-year-old Mexican woman received a temporary residency card. Immigration and Naturalization Service officials in Harlingen, Tex., said they hoped that younger immigrants would follow the example of Clara Escobedo de Martinez and apply for amnesty before the deadline next May. Officials said she was the oldest person known to apply for amnesty since the 1986 immigration law went into effect. "I feel very, very proud," the petite great-grandmother told four generations of her family, fellow immigrants and INS officials who gathered to share a cake baked in her honor at the Rio Grande Valley amnesty center in Harlingen. Escobedo was born Sept. 12, 1889, in the state of Nuevo Leon and lives in nearby Brownsville, Tex. She first entered the United States in 1927. She may apply for permanent residency within 18 months and will be eligible for U.S. citizenship when she is 104. Meanwhile, in Chicago, the INS processed the application of the 1 millionth immigrant to seek legal status under the amnesty program. Martin Hernandez, 30, a native of Mexico City who has lived in Chicago since he entered the United States in 1980, received a replica of the Statue of Liberty.