The Block S Club is association designed for former Letterwinners at Seneca High School in any sport or activity. Created to give Seneca High School alumni the opportunity to give back to the extra-curricular programs that helped mold them into the people they are, the Block S Club shares the name of a club that existed through the 1980’s for SHS letter winners. Membership in the Block S Club is reserved for alumni of Seneca High School that earned a varsity letter, or participated in extracurriculars that offered letters, during their time here. Funds raised through the Block S Club will go directly into the athletic department budget at Seneca High School. This association is separate from the Bobcat Booster Club- if you are interested in joining the Booster Club as well, please go to