(Completed)Southampton Archives - CrewList check

[jcmac]

Would sks be good enough to check two CL&A for me which I have found on the CLIP website.
D/RSS/1878/29279 :
Ship Arklow (of Glasgow) ON29279 Alex.McDonald 24 Tyree Seaman 1.1.1878 - 5.7.1878.
Can I please have his specific dates of engagement and discharge.

and

D/RSS/1879/29279 :
Ship Arklow (of Glasgow) ON 29279 Alex.McDowall 24 Tyree Seaman 6.7.1878 - 3.1.1879.
Can I please have his Surname confirmed and the specific dates of engagement and discharge.
and                                               H. McDonald 17 Tyree Seaman 6.7.1878 - 3.1.1879.
Can I please have his specific dates of engagement and discharge.

Your help would be very much appreciated.
jcmac.
(Glasgow)