Mantis has a son named Sequoia.  What organization is Mantis a former member of?
Sequoia (comics) Sequoia, (AKA Quoi and Q) is a Marvel Comics character. He is the son of Mantis and the elder member of the Cotati contingent which was transplanted from the Kree home planet Hala to Vietnam on Earth.
Sigma Alpha Iota Sigma Alpha Iota (ΣΑΙ) is an International Music Fraternity. Formed to "uphold the highest standards of music" and "to further the development of music in America and throughout the world", it continues to provide musical and educational resources to its members and the general public. Sigma Alpha Iota operates its own national philanthropy, Sigma Alpha Iota Philanthropies, Inc. Sigma Alpha Iota is a member of the National Interfraternity Music Council and the Professional Fraternity Association.