There are 1 book by Leland Dudley O'Brien on BookOrb. A strong starting point is Shamrocks and fleurs-de-lis (1983). The bibliography below is in publication order, with series grouped in reading order.
Standalone books
Frequently asked questions
How many books has Leland Dudley O'Brien written?
BookOrb lists 1 book by Leland Dudley O'Brien.
Where should I start with Leland Dudley O'Brien?
A good starting point is Shamrocks and fleurs-de-lis (1983).
What is the Leland Dudley O'Brien books in order list?
In publication order: 1. Shamrocks and fleurs-de-lis (1983).