I suggest not excluding psychotherapy literature of transgenerational haunting (ghosts) of the famine in subsequent generations. I recall an amazing article on this but can't remember the reference, probably in one of the books from NYU interpersonal psychoanalytic group (Sue Grand, Salberg, et al).

You might want to check out the archaeology reports edited by Mary and Adrian Praetzellis. These have excellent detail on the foodways of first generation Irish immigrants; the distinction between what they ate in California and the famine/pre-famine diet in Ireland falls at polar ends of the spectrum.

In terms of government attempts to remedy the situation, check the booklet of (Indian) corn recipes from North America printed and distributed in Ireland. Presumably it accompanied imports of North American corn. I'd also check the utensils and dinnerwares for changes in form and function. Archaeological site reports and probate inventories offer information on this topic.

Dear Jess, I am sending you in attachment some of the Russian articles on this subject , mainly from a historical perspective.

Have you read Alexander Somerville's "Letters from Ireland during the Famine of 1847" - he makes many observations on agriculture and the local economy as he travelled throughout the country from Feb to April 1847 which you might find useful.