Here's a PDF of the permit issued by NPS. Considering all the requirements of the permit application, you have to admit the applicants got their ducks in a row awfully quickly (sound systems, t-shirts, wristbands, etc.).
Persons in charge: Deena Katz, Matt Hall, Ann Marie Hoffman, Paul Sorenson, James Day. Their address is blacked out, but listed as Los Angeles.
Deena Katz ... is also one of the executive directors of the Los Angeles Women's March Foundation. ...
Katz is a producer and casting director on shows like Real Time With Bill Maher, The Grand Tour, and perhaps most prominently, Dancing With The Stars. According to The Miami Herald, some of the survivors of the deadly Stoneman Douglas High School shooting last month who called for the march chose Katz to organize the event. ...
source... The March for Our Lives Action Fund, for example, was registered with the District of Columbia Department of Consumer and Regulatory Affairs on Feb. 21, 2018 as a Deleware-based organization with a business address in Encino, California.
The agent for the fund is listed as CT Corporation System, a D.C.-based firm that handles compliance issues. Jeri Rhodes is listed as the executing officer for the filing.
Rhodes is the Associate Executive Secretary for Finance and Administration for the Friends Committee on National Legislation, which is a Quaker lobbying group with the goal to “advance peace and justice.†...
souorceThe others are hard to track down, having such common names.