Byrne Seeks to Learn If Ronan's Port Role May Be Affected
NJ Gov Byrne say he will watch closely for additional details of $550,000 gift from Nelson A Rockefeller to Port Auth Chmn William J Ronan, news conf; questions Ronan's ability to serve interests of NYS and NJ impartially; disclosure of gift and Ronan's continuing salary from Rockefellers raises questions in number of quarters about possibility of conflict of interest in his current post and when he was MTA chmn; much of concern expressed involves Ronan's taking salary from Rockefeller family at time when Port Auth was doing substantial amount of business with Chase Manhattan Bank, whose pres is David Rockefeller; Atty Gen Louis J Lefkowitz will make study of whether state laws or ethical standards were violated by Ronan-Rockefeller arrangement; Manhattan Dist Atty Richard H Kuh and NYC Mayor Beame see nothing in gift to warrant criminal action; provisions of state law prohibiting public servants from accepting gifts detailed (L)