found: Panama Pacific Line. "I christen thee Pennsylvania" presented at the launching of the new turbo-electric liner Pennsylvania: latest addition to a great American fleet, [1929]
found: Emmons, Frederick E. American passenger ships: the ocean lines and liners, 1873-1983, 1985:p. 105 (Pennsylvania, #229044, operated 1929-1938. Built by Newport News S.B. & D.D. Co., launched 10 July 1929. Transferred to American Republics Line in 1938; renamed Argentina)
found: Moore McCormack website, Aug. 16, 2013: S.S. Argentina page (Official number 229044; the Pennsylvania was sold to the U.S. Maritime Commission in 1937, refurbished to carry 500 passengers (including the removal of one funnel) for passage from New York to Buenos Aires by American Republics Line operated by Moore & McCormack Lines and renamed S.S. Argentina)