You've probably found the information on the Roma by now, but if not, here's what I found. I'm still looking for an image.
2,671 gross tons, length 411.1ft x beam 46.1ft, two funnels, two masts, single screw, speed 15 knots. accommodation for 54-1st and 1,400-3rd class passengers. Launched on 14th Aug.1901 by Forges & Chantiers de la Mediteranee, La Seyne for the Fabre Line, Marseilles, she started her maiden voyage on 30th Apr.1902 from Marseilles to Naples and New York. Calls at Lisbon, Azores and Providence R.I. were also made. In 1912 accommodation for 60-2nd class passengers was added and in Apr.1928 she made her last Marseilles - New York voyage. Dec.1928 scrapped at La Seyne. [North Atlantic Seaway, vol.3 , p.1134 by N.R.P.Bonsor]"
And this is the link where I found the info: http://www.histarmar.com.ar/MarinaMercanteExtr/UnitedFruit/L...