employeemeans (1) any individual in the service of one or more employers for compensation, (2) any individual who is in the employment relation to one or more employers, and (3) an employee representative.
employee representativemeans any officer or official representative of a railway labor organization other than a labor organization included in the term “employer” as defined in section 1(a) who before or after the enactment date was in the service of an employer as defined in section 1(a) and who is duly authorized and designated to represent employees in accordance with the Railway Labor Act, as amended, and any individual who is regularly assigned to or regularly employed by such officer or official representative in connection with the duties of his office.