Catholic Youth Organization
The CYO Championship was an invitational only show held in Boston, Massachusetts from 1963 to 1984 when it was discontinued. Top CYO sponsored corps could depend on being invited while other corps had to depend on their record in other competitions to be invited.
- National Federation for Catholic Youth Ministry, Inc. - official web site
- CYO Nationals scores - corpsreps.com
- Catholic Youth Organization - wikipedia.org