The man's name is L. Lawrence Weber. He was born in 1869 in NYC, New York. According to Wikipedia he was an American Sports Promoter, stage show producer, and theater manager. In 1915, he was involved in the founding of Metro Pictures, which years later would morph into Metro-Goldwyn-Mayer.
He seems to have been involved in both early motion pictures and theatrical stage shows. Then in
The new Houdini theatre show, sometimes known as the 3 Shows in One Show, opened August 1925 at the Maryland Theatre. In The Untold Story, Milbourne Christopher says the show opened at the Maryland Theatre in Baltimore. This had me very excited. I was able to track down the location of that theatre and some photos. Unfortunately, The Maryland Theatre in Baltimore is long gone. AND, it turns out it's also the incorrect theatre! Christopher got that part wrong.
I knew there was a Maryland Theatre in Hagerstown MD, and that one still stands. However, after much digging I found the Hagerstown Maryland Theatre was also not the location. Thanks to something printed in Pat Culliton's book Houdini: The Key on page 398 there is a review of the very first Houdini 3-1 show. In the article it mentions Cumberland Maryland. After, more digging I finally found where there had once been a Maryland Theatre in Cumberland. It was on 37 Mechanic St. in Cumberland. The Cumberland Maryland Theatre opened on Nov 21, 1907 and had 1800 seats. It is now long gone, it was razed in 1964.
In the article printed in Houdini: The Key it says, "Opening the show last night, Houdini referred to Cumberland as marking an important epoch in his life and said that if he ever wrote an autobiography of his life, he would devote a chapter to his experiences in Cumberland inaugurating a new phase of his career as a public entertainer." In the same article on page 398, it goes on to say, that L. Lawrence Weber sent a note to Houdini following his opening at the Maryland Theatre which read, "Hope that today in Cumberland was but the dawn of a long and happy partnership between us and that future years will bring you new and greater honors which you so honestly deserve."
Getting back to L. Lawrence Weber. He had a very successful career producing plays. His last was The Man Who Killed Lincoln which ran in 1940. Mr. Weber had one other connection to Houdini. He was one of the Honorary Pallbearers at Houdini's funeral. The others included: E.F. Albee, J.J. Murdock, Martin Beck, William Morris, Lee Shubert, Mark A. Luescher, Charles Dillingham, Richard E. Enright, Adolph S. Ochs, William Johnson, Adolph Zukor, Orson Munn, Arthur Prince, Bernard M.L. Ernst, Professor Brandon Matthews, Joseph F. Rinn, Sophie Irene Loeb, Bernard Gimbel, Francis Werner and Oscar Teale.
*Please check out the comments below as John Cox/WildaboutHoudini.com had found out some information on L. Lawrence Weber that I missed. It adds another dimension into the Houdini/Weber relationship!