WASHINGTON, Dec. 9 (AP)---Chief Justice Hughes presided today as the incorporators of the American Red Cross elected five new members to fill vacancies caused by deaths. Those named were Newton D. Baker, Frank T. Heffelfinger of Minneapolis, J. Franklin McFadden of Philadelphia, John W. Morey of Denver and Mrs. Thomas Potter Jr. of Philadelphia. Henry P. Davison Jr. of New York was elected to the board of trustees of the endowment fund and Cornelius N. Bliss of New York and Eliot Wadsworth of Boston were re-elected to the central committee.