Moreau Catholic High School in Hayward Ca.
We were green and gold (or white really cuz all the athletic uniforms were green and white.)
Mascot: The mariner. It was actually a really big pirates of the caribbean-esque ship. We had an on going joke with it though. Castro Valley, a rival h.s, was the trojans. So everytime we played a game against each other in whatever sport, it would be the trojans vs the seamen. and the trojans usually won.
I graduated 1999 with about 280 some odd others. There were only 1200 students at most at the school.