CREATE TABLE table_204_673 (id DECIMAL, "name" TEXT, "egot completed" TEXT, "emmy" DECIMAL, "grammy" DECIMAL, "oscar" DECIMAL, "tony" DECIMAL)

of those actresses receiving a tony after 1960 , which took the most amount of years to get their egot completed .
SELECT "name" FROM table_204_673 WHERE "tony" > 1960 ORDER BY "egot completed" DESC LIMIT 1
SELECT "name" FROM "table_204_673" WHERE "tony" > 1960 ORDER BY "egot completed" DESC NULLS LAST LIMIT 1