Actually his brother also a Priest was supposed to take the mission of Leper Island but was detered I think by illness.
Would have to go dig out my report I did for Adult Catechism.
So that he actually was not canonized when I chose him but I believe Father said if it was a certain time in history that a non canonized person served it was ok.
It is perfectly fine to choose a 'Venerable' or 'Blessed' for Confirmation. In fact, the current trend is to simply stick with your Baptismal name. In some of the more 'progressive' dioceses, one may also use an invented name. When I taught the confirmandi in one of those parishes, I insisted they pick the name of a saint (or veneralbe or blessed), write a report and share it with their classmates. In doing their research, some chose saints from the first centuries. It was beautiful to hear those names called out at Confirmation, a reminder to all present of these witnesses to the faith.