Hi Rex
As I said in my earlier post, the source is the 1861 World Army Census. However it is just an index, so no further details included other that what I posted.
This is from 1860's Belfast Timeline
http://www.glenravel.com/belfast-timeline.htmlMay 1864
"Brigadier-General Haines, Commander of the First Infantry Brigade in the Dublin district, inspected the depot battalion in Belfast Barracks. The troops, to the number of 700, consisting of the depots of the 20th, 69th,
62nd, 63rd, 76th, and 96th Regiments, under the command of Colonel Frazer were paraded in the Barrack Square."
So James Wyatt might well still be in Belfast in 1864 when Edward James is born.
Do you have the marriage cert for James Wyatt/ Ellen Faren ? I would think that one is even more useful to get. It will confirm his fathers name and occupation (which you know already)
Details are
1860 - Registration District: Belfast
Vol:2 - Pg : 834
I would be optimistic that you have enough circumstantial evidence now to take the punt !!
You can definitely get both certs from GRO Roscommon for €4 each as aghadowey says - I have gotten several Belfast certs from them 1860s through 1880's.