When given the opportunity to host a public reception for President McKinley, fair organizers chose to site it in the Temple of Music—Louis L. Babcock, grand marshal of the Exposition, regarded the building as ideal for the purpose. The large auditorium was located close to the Esplanade, in the heart of the fair, and had doorways on each of its four sides. In addition to rows of chairs on the floor of the hall, it had spacious galleries. Babcock spent the morning of September 6 making some physical arrangements for the reception. Floor seating was removed to create a broad aisle, running from the east doors through which the public would be admitted, to where McKinley would stand. Once members of the public shook hands with McKinley, they would continue on to exit the building. An American flag was draped behind the President, both to screen him from behind and for decoration—several potted plants were arrayed around his place to create an attractive scene. Besides its utility for other purposes, the ornate building was one of the architectural features of the fair.Considerable arrangements had been made for the President's security. Exposition police were stationed at the doors; detectives from the Buffalo police guarded the aisle. In addition to McKinley's usual Secret Service agent, George Foster, two other agents had been assigned to the Buffalo trip because of Cortelyou's security concerns. Babcock was made nervous by a joke at lunch in an Exposition restaurant that the President might be shot during the reception. He had arranged for a dozen artillerymen to attend the reception in full-dress uniform, intending to use them as decoration. Instead, he had them stand in the aisle with instructions to close on any suspicious-looking person who might approach the President. These men were not trained in police work, and served to crowd the area in front of the President and obstruct the views of the detectives and Secret Service. At such events, Foster usually stood just to the left and behind McKinley. Milburn wished to stand to McKinley's left to be able to introduce anyone he knew in the line to the President, and Foster and another agent instead stood across the aisle from McKinley.Throughout the afternoon, crowds had filled the floor outside the blocked-off aisle, and the galleries as well, wanting to see the President, even if they could not greet him. McKinley arrived just on time, glanced at the arrangements, and walked over to his place, where he stood with Milburn on his left and Cortelyou on his right. The pipe organ began to play "The Star-Spangled Banner" as McKinley ordered the doors open to admit those who had waited to greet him. The police let them in, and McKinley prepared to perform his "favorite part of the job". An experienced politician, McKinley could shake hands with 50 people per minute, gripping their hands first so as to both guide them past him quickly and prevent his fingers from being squeezed. Cortelyou anxiously watched the time; about halfway through the ten minutes allotted, he sent word to Babcock to have the doors closed when the presidential secretary raised his hand. Seeing Cortelyou looking at his watch, Babcock moved towards the doors. As the reception continued, the organist played works by Johann Sebastian Bach. The procession of citizens shaking hands with their President was interrupted when 12-year-old Myrtle Ledger of Spring Brook, New York, who was accompanied by her mother, asked McKinley for the red carnation he always wore on his lapel. The President gave it to her, then resumed work without his trademark good-luck piece. The Secret Service men looked suspiciously on a tall, swarthy man who appeared restless as he walked towards the President, but breathed a sigh of relief when he shook hands with McKinley without incident and began to move towards the exit. The usual rule that those who approached the President must do so with their hands open and empty was not being enforced

Question: Who mentioned the building was ideal for purpose of the Temple of Music?
Answer: Louis L. Babcock