Reference in the National Archives' collection of Thomas being in Newfoundland as early as 1844:
https://recherche-collection-search.bac-lac.gc.ca/eng/home/record?app=fonandcol&IdNumber=2434393&q=BOLANDAlso reference to his death in 1856 "on the ice of the harbour"
https://collections.mun.ca/digital/collection/diocesan/id/12601/This tidbit indicates that the family were in Whitechapel (London) prior to his ordination:
The Rev. Mr. Meek removed from St. George's Bay to
Prince Edward Island, and was succeeded in the Mission
by the Rev. Thomas Boland.
"In March, 1856, he went to visit a parishioner a short dis-
tance from Sandy Point, the place of his residence ; and, not
returning when expected, search was made for him, and he was
found dead within a mile of his own house. It is presumed,
that having incautiously gone alone, he had lost his way in a
drift; and, yielding to cold and fatigue, had sunk into that fatal
sleep in which the vital powers are soon extinct.
"The Rev. Thomas Boland had, before his ordination, been
for several years a Scripture Reader in the Parish of White-
chapel, and was highly commended to the Society by several
clergymen to whom he had been favourably known in that part
of the town. The Rev. W. W. Champneys, in particular, tes-
tified to ' his genuine piety, decided ability, and the soundness
of his views.' He went to Newfoundland in 1849. The obitu-
ary notice characterises him as a person of much learning, abil-
ity, and zeal ; and adds, tha this ministry appeared to be much
blessed in the remote settlements — first of Channel, and after-
wards of Ft. George's Bay, to which he was sent as the Society's
Missionary by the present Bishop of Newfoundland, by whom
he was ordained both deacon and priest."