The corps changed their name to the Bluewater Bridgemen in 1977 or 1978.
The Madonna Rumour
A persistent story in the drum corps community is that singer/songwriter/author/actress Madonna was a member of the Bluewater Bridgemen in her youth. While her biography supports this in that she is said to have grown up in an area of Michigan close to the border city of Windsor, Ontario, there is, to date, no definite information to support this in her biographies or from fellow marching members.
Her biography in wikipedia.org seems to refute this however:
"After graduating from Rochester Adams High School in 1976, Madonna received a dance scholarship and attended the University of Michigan. At the encouragement of ballet teacher, Christopher Flynn, Madonna left college after only one semester. She then moved to the Corona, Queens district of New York in 1978 to pursue a dance career." 
Some versions of the story state that she was a member of The Bridgemen, Bayonne, NJ however this has been disputed by marching members of that corps.
The imdb.com internet database states that she "Marched with the Bridgemen Drum and Bugle Corps.", but this would appear to have been submitted by a web site user. 
- post by 'Sarnia Sam' re: the Bluewater Bridgemen - drumcorpsplanet.org/forums