There are 2 books by Dorothy J. O'Brien on BookOrb. A strong starting point is Index to Mariposa gazette and miner commemorative, 1979 (1997). The bibliography below is in publication order, with series grouped in reading order.
Standalone books
Frequently asked questions
How many books has Dorothy J. O'Brien written?
BookOrb lists 2 books by Dorothy J. O'Brien.
Where should I start with Dorothy J. O'Brien?
A good starting point is Index to Mariposa gazette and miner commemorative, 1979 (1997).
What is the Dorothy J. O'Brien books in order list?
In publication order: 1. Church records (1987), 2. Index to Mariposa gazette and miner commemorative, 1979 (1997).