After winning the 1st American Chess Congess in December of 1857, Paul Morphy returned to his home town, New Orleans, where he was president of the New Orleans Chess Club. He stayed there until May 31 at which time he took off for Europe. But from January until almost June, he was in New Orleans. While there, he polished up on his blindfold games by giving at least 1 four-board blindfold demonstration (in January) and 1 six-board blindfold demonstration (in February or March) against fellow members from his chess club.
Here is a fantastic little Evans Gambit from the January 4-board blindfold simul.
Before making his final move (move 33), Morphy announced "mate in 5" and his opponent resigned.