SELECT MAX(martyred) FROM table_name_64 WHERE beatified = 1909 AND name = "john hoan trinh doan / st. john hoan" AND canonised > 1988
Kapan John Hoan Trinh Doan / St. John Hoan, yang dibiasakan pada tahun 1909 dan berkanonisasi setelah 1988, martir?
CREATE TABLE table_name_64 (martyred INTEGER, canonised VARCHAR, beatified VARCHAR, name VARCHAR)