Possible Clues:

• Jan. honoree
• Mid-January honoree (inits.)
• Dr. with a dream
• "I have a dream" monogram
• January holiday monogram
• 'The fierce urgency of now' speaker, familiarly
• Jan. holiday honoree
• Civil rights leader, in street names
• Monogram of 1964's Nobel Peace laureate
• Monogram of a January honoree