These are transcribed from microfilm records of passenger ListsArrivals by ship (alpha file) to Port of Boston 1848-1906. These are Canadian MAritime arrivals .... &as I canwill supplement with some Ireland arrivals.
Some of these note traffic back & forth to PEI & NB, NS by the arrivals ... noting the pre-immigration travel.
McCormacSS Dominion 29 F from Yarmouth, NS Nov 29 1879 Mental & Body List # 18
*** Mrs McCormackSS. Commerce Oct 27 1870 PEI List:45,46,47,48,49,52 *** Angus McCormack(Star.)SS Carroll June 24, 1883 48 M PEI Farmer List 28
*** Mrs. Ann McCormackBrig Mary Helen Isabella, Margaret[children] 27 F (no occup) PEI Aug 11, 1864 List 7,8,9
*** Ann McCormackSS. Carroll Nov 3 1875 22 FService PEI List 1
*** Ann McCormackSS Worcester Aug 13 1888 Age 50?60?80? [first digit smudged] in US before Servant PEI Lot 106
Annie McCormackBrig "Maggie Mcneill" July 31 1866 18 FServant PEI intend to inhabit: US List 1
*** Daniel McCormackSS Alhambra June 29, 1868Seaman Age 24? 25? PEI intent to inhabit: US List 20
*** McCormack, Daniel October 10, 1881SS Schnr "harriet Turry" 21 MFisherman PEI List 3
These were culled from a large list as I searched for my great-grandfather Daniel F McCormack, PEI born.. but his dob is 1846 (this hits +2 years the 1868 arrival is approximate to hisearly 1870's start i Boston--also my ggf began a business in livery & lacksmithing)
Also many PEI'ersincluding a 17 year old McCormack Johnarrived as a fisherman..may have worked their way down from the Banks with the busy American ships.
Hope this helps someone..while I can look up I will send me a name or de ..& I'll post more as I can.