The Millville Marching Band has been in existence since the early 1900's.  There are some awesome pictures at the Thunderbolt Club.  This pictures on this page show the 2022 version of the Marching Thunderbolts. 

 

The Millville vs. Vineland football rivalry is one of the longest rivalries in the country and the marching bands had a lot to do with that tradition.  
 
I will continue to compile history about the band and post it here. Feel free to reach out if you have any info or pictures.  Thanks.
 
Currently in Group 4A in Tournament of Bands and Group 4 of NJMBDA.