Possible Clues:

• Historic mission
• Mission to remember
• Mission of 'Pee-wee's Big Adventure'?
• 1960 film starring and directed by John Wayne
• Fort supplying a hot meal
• Texas site to ''Remember''
• Bowie's last stand
• Words shouted after ''Remember''
• Crockett's last stand
• Having time to cure - a doctor's mission remembered