CREATE TABLE table_203_449 (id DECIMAL, "name" TEXT, "lifetime" TEXT, "nationality" TEXT, "notable as" TEXT, "notes" TEXT)

how long did elisabeth irwin live ?
SELECT "lifetime" - "lifetime" FROM table_203_449 WHERE "name" = 'elisabeth irwin'
SELECT "lifetime" - "lifetime" FROM "table_203_449" WHERE "name" = 'elisabeth irwin'