Anyone know when Irish died there i.e the last speakers?

Probably hasn't fully. Though there's probably not many.

Tá cupla leabhar scríofa faoi Ghaeil Thalamh an Éisc. "Na Gaeil i dTalamh an Éisc" an teideal atá ar an dá cheann acu, sílim, cé go bhfuil ceann amháin díofa scríofa i mBéarla. Is dócha go mbeadh freagra ar do cheist insan cheann Gaeilge, ar a' laghad.

Ní cuimhin liomsa mórán fán cheist seachas gur iarr na hÉireannaigh am éigin insan dara leath den naoú haois déag ar na húdaráis insan Eaglais Chaitliceach easpag a mbeadh Gaeilge aige a chur chucu. (Chuala mé go ndearna na hÉireannaigh in áit i gQuebec an rud céanna.)

Bhíodh cóilíneacht bheag Gàidhlig ann in iardheisceart an oileáin. Rinne bean éigin staidéar acadúil ar na cainteoirí deireanacha agus foilsíodh é timpeall 1980. Déarfainn go bhfuair na cainteoirí Gaeilge deireanacha bás sula rachadh sé ar intinn ar lucht na hollscoileanna staidéar a dhéanamh orthu.

There have always been Irish immigrants in
NewFoundland. The only change over time was
the fact that the more arrivals from the
late 19th century on spoke English like the
rest of Ireland.

Consider this:

Gaeltacht in Ireland
---------------------
Small Irish speaking community.
Isolated with little inward immigration.

RESULT: small sustained isolates with ever
diverging dialects.

Original Irish speaking communities in NewFoundland
----------------------------------------------------
Small Irish speaking community.
Isolated, BUT, with a LARGE inward immigration
from many sources over a period of linguistic
change in Ireland.

RESULT: Language loss.

It's very predictable.

Faraor géar. Ach go raibh maith agat as a raibh le rá agat. Cur síos gonta ar an phróiseas.