Another tuppenceworth:

One penny: Cecil Woodham Smith has been much criticised; I do not wish to suggest that the Great Irish Famine was not a dreadful event, or that Britain's measures to deal with it did not range from the indifferent to the callous but history as politically sensitive as this requires very careful research and most historians (not just conservative revisionists) question her balance.

Two Pennies: I did further search in the 1887,88,89 Thom's Directories - I like to be comprehensive (and fair) and remembered that printers, especially of Music were sometimes engravers - and on copper plate - however there was no Devlin among Copperplate Printers or among Engravers in Dublin at those dates. So I'm in the clear as yet.