author

William D. O'Brien

A Catholic writer remembered mainly for an illustrated devotional book from the early 20th century, he appears to have written for a broad religious audience rather than a narrowly academic one. The surviving record is slim, which gives his work a quiet, archival charm.

1 Audiobook

The "City Guard": A History of Company "B" First Regiment Infantry, N. G. C. During the Sacremento Campaign, July 3 to 26, 1894

The "City Guard": A History of Company "B" First Regiment Infantry, N. G. C. During the Sacremento Campaign, July 3 to 26, 1894

by California. Infantry. First Regiment. Company B, Irving B. Cook, George Filmer, W. J. Hayes, A. McCulloch, William D. O'Brien

About the author

Available sources identify Rev. William D. O'Brien as the author of Life of the Blessed Virgin in Pictures, published in Chicago by Extension Press in 1919. Bookseller and catalog listings consistently connect his name with that title, and at least one modern bookseller credits him specifically as a priest.

Beyond that book, reliable biographical detail is hard to confirm from the sources I found. No clear Wikipedia entry or similarly strong biographical profile appeared, so it is safest to describe him as an early-20th-century Catholic author known for devotional writing centered on the Virgin Mary.

Because the public record located here is so limited, the most meaningful way to approach his authorship is through the surviving book itself: a visual, faith-focused work designed to make religious reflection accessible and memorable for readers.