Enjoy this great Photo Slideshow of whole senior parade from multiple locations with background music — includes selected 1950 photos by Mats Linden and others who posted photos in the common Google Photos folder one week after the event, 115 min long:
https://drive.google.com/file/d/1gctF4bj5LfDpXUiiGVFk2HaHmeVPq12i/view?usp=sharing