According to http://tapinto.net they came from across Bayonne and across New Jersey, and some from even further afield, gathered for what would likely be the final official performance of the Bayonne Bridgemen. The ceremony on June 1, which saw a portion of Dennis Collins Park named after the Bridgemen, was a poignant celebration of the drum and bugle corps’ rich history and enduring legacy.

https://www.tapinto.net/towns/bayonne/sections/arts-and-entertainment/articles/the-bayonne-bridgemen-a-family-celebration-of-a-drum-corps-legacy: The Bayonne Bridgemen