There are no published industry standards for two of the messages you state, those being FCM & MCL. The only published structured mesages within the industry for crew lists are via APIS EDIFACT which is not benerally but can be transmitted via Type-B.
The Passenger Manifest (if dispatched as a teletype message, TPM) should conform to IATA Recommended Practice 1717 which is in the IATA PSC Manual.