Thanks to all those who have looked for this on my behalf - and to those who have given information that has led to my successful location of this.

Eamonn Mac Thomáis "Down Dublin Streets" was published probably in 1965 by Joseph Clarke's Irish Book Bureau, Dublin "To commemorate the Golden Jubilee of the 1916 Easter Week Rising." It's a small book of 73 pages and seems to be quite rare - I can find copies in only six libraries in Britain or Ireland.

The poem has nine four line verses outlining the locations occupied by members of the IRA during the rising.

If there is demand I will post it in full.