The actual crew list for the Titanic's journey from Belfast to Southampton is held at the Public Record Office in Belfast, reference Trans/2A/45/381/c - I have looked at this original document several times and am in possession of photocopies of certain sections of it.
The temporary crew were enlisted in Belfast in the normal way and I quote from the front sheet - 'the said crew shall be on board this steamer on Monday morning, 1st April 1912; firemen at four o'clock, and seamen at six o'clock, and from that time until she is safely moored in one of the Southampton Docks they shall perform all work required of them by the Officers in command without any further payment than is entered against their names. Firemen to clean down after arrival and as may be required. Food and bedding will be provided on the way round to Southampton, also tickets for the return journey to Belfast.' Added on the the end of this paragraph in a lighter pen is the following, 'Five shillings per day to be paid for detention in Belfast Lough, commencing from mid-night, Monday 1st April 1912.' This was because the ship was stuck in port because of bad weather.
There then follows the listing of crew, starting with the Captain downwards, I assume in order of importance as the firemen and stokers appear towards the end of the document. I have a copy of pages 8 & 9 which shows data regarding 20 of the firemen. In the left hand column the name of each crew member is entered and as each person boarded ship he marked an 'X' beside his name, one man Stewart Rowan has a line through his name and the entry 'failed to join' added.
The next columns state for each man- his age, nationality/birth place/ name and date of last ship sailed on/ capacity in which he was engaged/ place of signing on as crew/ wage agreed/date and place of discharge and wages paid. As each crew man left the ship he again made his 'X' beside his name and the last 2 columns report on the character of each person. Everyone on page 8 & 9 have V.G. (very good) stamped 'for ability' and 'for good conduct'.
The Public Record Office in Belfast hold the ORIGINAL 'Particulars of Engagement' documents for every ship that started it's journey from Belfast from 1864 onwards whether it was engaged in 'Home Trade Only' or if it was a 'Foreign-Going Ship', these are not office copies. The Belfast - Southampton journey was considered a home trade run and therefore it is only this part of the voyage that is kept at the Public Record Office in Belfast, it does not hold the crew agreements for the Titanic's journey from Southampton, probably because it was considered a completely separate journey. The particulars of agreement/crew lists were required to be kept at the port of original departure for each journey and I assume that the Titanic's documents should have been somewhere in Southampton but because these are such famous documents I assume they are now kept at the National Archives at Kew.