How William died

Killed while conducting combat operations in Anbar Province. [source: Faces of the Fallen]
projects.washingtonpost.com/... /william-j-callahan/

Dept. of Defense News Release

Sign Guestbook

211 entries - Legacy.com
3 entries - The Iraq Page

Memorial Sites

Honor the Fallen
Faces of the Fallen
Legacy.com
The Iraq Page

Obituaries

The Boston Globe
The Enterprise
The Patriot Ledger

Press Coverage [source: Faces of the Fallen]

Hundreds Honor Fallen Marine
  (WCVB-TV, Boston, May 5, 2007)

Funeral Held For Bay State Marine Killed In Iraq
  (WCSH-Portland, May 8, 2007)

Friends and relatives attend wake of Marine Sgt. William J. Callahan
  (Brockton Enterprise, Mass., May 7, 2007)