There is only one James Moses from Wales on the 1870 census, a miner, 25, no family listed, in Scranton Pennsylvania, Luzerne county. This county borders Lackawanna county where a Hyde Park is located, and there are many Moses surnames noted in the cemetery there. The census was taken June 1870. The Castle Garden data base shows a James Moses 26, arrived 2/19/1870, with wife Anna 24, and infant Eleanor. Another James Moses arrived alone on Aug 27, 1870, but that makes it after the census was taken. I did not find any young James Moses arriving 1870-1875. I don't know if this helps any, very hard to pinpoint any details when they were only in the USA a short time.