Yes. Roman Catholics were aboard the First Fleet. The First Fleet consisted of some Irish Catholics as well as the English prisoners.
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There are Catholics everywhere in the world but there are some countries that prohibit Catholics from practicing their faith, such as Saudi Arabia.
If you count Christopher Columbus as the first European to arrive in the New World, that would be Catholics.
from WikiPedia:Catholicism arrived in Australia with the British First Fleet in 1788. The first Australian Catholics were mainly Irish.
The first Catholics were the Blessed Virgin Mary and the Apostles, all those who were in the upper room when the Holy Spirit descended upon them.
Catholics
the 12 disciples
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English Catholics.
Irish,Catholics
The first settlers of New Jersey were Catholics, Jews, Lutherans, and Quakers.