pantheress on Family Tree Circles

Thomas Morgan and wife Anna (maiden name unknown to me)both from Ireland in early 1800's.They have at least 1 child named Peter/Petrus Morgan born in Ireland in 1826-1829.Peter/Petrus is in England in Liverpool,Lanchester,a widow with a son Daniel,who was born Nov.1854.
He then marries Frances/Francisca Foster born England, in 1861 in Houghton-le-Spring,Durham,and has 4 more children. Mary/Maria,Petrus,James F./Jacobus Foster,And Isabella all in Houghton-le-Spring and all christened there. I'm sure there are brothers and sisters for Peter/Petrus Morgan. Where from Ireland did they come from and how did they travel. Any help most welcome.