CREATE TABLE table_73599 ("Name" TEXT, "Location" TEXT, "Act. Units" FLOAT, "Stacks" TEXT, "In Service Dates" TEXT, "Unit Capacity  ( 2009 ) " TEXT, "Nameplate Capacity  ( 2009 MW  ) " TEXT, "Owner Type" TEXT, "Owner ( s )   ( 2009 ) " TEXT)

Name the stacks for 1 1969 2 1995
SELECT "Stacks" FROM table_73599 WHERE "In Service Dates" = '1 1969 2 1995'
SELECT "Stacks" FROM "table_73599" WHERE "In Service Dates" = '1 1969 2 1995'