YOUTH TOWN HALL MEETING.  The Montgomery County Council, which for the past several years has held Town Hall Meetings throughout the County in its efforts to find out what issues most concern residents, will learn what is on the mind of younger residents when it hosts its third-ever Town Hall Meeting for Students on Wednesday, Oct. 10, at the Council Office Building in Rockville. The meeting, in the Council’s Third Floor Hearing Room, will start at 7 p.m. A pre-meeting reception will begin at 6:30 p.m. in the building’s second-floor cafeteria. John Mannes, a senior at Northwest High School who is the 35th student member of the County Board of Education, will be among those attending.  Call 240-777-7931 to RSVP.