One of the more noticeable buildings in the video above is the Choctaw Club building, which may be remembered by elder New Orleans natives.
The building was home of the city's Old Regular political organization for many years. Located at 518 St. Charles Avenue, the building's proximity to City Hall (now Gallier Hall) underscored the power of the Democratic machine over the municipal government. Choctaw control was finally broken with the election of Mayor Chep Morrison in 1946 and the rise of his Crescent City Democratic Association.
The Choctaw Club building was demolished during the 1970s; the site is now occupied by the Best Western Parc St. Charles Hotel.
Given the location of the building, we can see in the video that the parade captured above was traveling on Poydras, and the cameraman was facing the intersection at St. Charles.
(Info courtesy of Louisiana Division/City Archives, New Orleans Public Library)