Starting at the 1970 National Convention, co-ed membership was proposed by several chapters but failed to reach the two-thirds majority at the National Conventions which was required to alter the organization's bylaws.
Co-ed membership was proposed by several chapters. This was starting at the 1970 National Convention. Co-ed membership was failed to reach the two-thirds majority at the National Conventions. This was starting at the 1970 National Convention. These thirds majority at the National Conventions was required to alter the organization's bylaws.