James Wrathall's Voyage to New York

This page has information regarding James Wrathall's voyage on the SS Wisconsin from Liverpool to New York in 1889.
The Immigrant Ships Transcribers Guild has the following record for the SS Wisconsin, transcribed by Mary Heindl on 14 September 1999:
Liverpool, England and Queenstown, Ireland To New York
October 18, 1889

DISTRICT OF NEW YORK - PORT OF NEW YORK

List or Manifest of all the Passengers taken on board the SS Wisconsin whereof J. P. Worrall is Master, from L'pool and Q'town; burthen 2386 tons.
Passenger number NameAgeSexCallingCitizenshipDestinationCompartmentAmount of baggage
272 Jas. Wrathall 39 M Gent USA USA In Cabin Rooms *
273 Mrs. Jas. Wrathall 37 F Lady USA USA In Cabin Rooms *
#272 & #273 - 3 pieces of luggage between them
The HISTORY OF JAMES WRATHALL (written by Lois Wrathall Nicholson) states that "James was converted in England [in 1850], but waited until after his arrival in Utah to be baptized" and that "In June 1889, he went to England for one year on a Genealogical Mission. His second wife, Flora, accompanied him." The age (37) listed in the SS Wisconsin's records is correct for Flora, who was born in 1852, but it gives James' age as 39. This implies that James used something similar to a christening date for his age. However, we don't have any explanation for the discrepancy between Lois' departure date from America and James' return after 4 months.