The Philadelphia Inquirer of November 9th 1969, mentions an upcoming concert of Simon & Garfunkel on November 23rd at The Miami Beach Auditorium/Convention Hall:
So far I have not been able to get it confirmed by an advertisement or a review.
here are the other 1969 shows as known to me now:
1969-05-02 Buffalo (NY), University of Buffalo [joining a Frank Zappa concert as Tom & Jerry]
1969-07-28/30 Los Angeles, USA, CBS Convention, Century Plaza Hotel
1969-10-31 Detroit, Cobo Hall (Start of the ’69 tour)
1969-11-01 Kansas Wichita State University / Henry Levitt Arena USA WI
1969-11-02 St. Louis, Kiel Auditorium
1969-11-07 Philadelphia, Philadelphia Civic Center, Convention Hall
1969-11-08 Carbondale Southern Illinois Univeristy / USA IL
1969-11-09 Oxford Miami University / Millett Hall USA OH
1969-11-14 Salt Lake City Salt Palace USA UT
1969-11-15 Long Beach USA CA
1969-11-27 New York City Carnegie Hall USA NY CBS
1969-11-28 New York City Carnegie Hall USA NY CBS
Paul Simon - 'Time it was...it was' 