The Books Insiderindependent audiobook data
Unknown Valor: A Story of Family, Courage, and Sacrifice from Pearl Harbor to Iwo Jima by Martha Maccallum

Unknown Valor: A Story of Family, Courage, and Sacrifice from Pearl Harbor to Iwo Jima: Audiobook

According to The Books Insider's catalog data, the Unknown Valor: A Story of Family, Courage, and Sacrifice from Pearl Harbor to Iwo Jima audiobook runs 10.9 hours unabridged, narrated by Martha Maccallum (about 7.3 hours at 1.5× playback speed).

10.9listening hrs
Memoirsstore shelf
2020released
Free for new listeners

The instrument When will you finish it?

Based on 10.9 hours of listening.

Days to finish Unknown Valor: A Story of Family, Courage, and Sacrifice from Pearl Harbor to Iwo Jima at common listening paces
Your paceYou'll finish in
30 min / day22 days
1 hour / day11 days
2 hours / day6 days
1 hour / day at 1.5×8 days

Part of The Audiobook Finish-Time Calculator: the same instrument for any audiobook we measure.

What our data says

  • At 10.9 hours, it runs longer than 85% of the 10,266 Memoirs audiobooks in our catalog.

Computed from 409,794 English-language unabridged audiobooks in The Books Insider catalog (store data read November 3, 2026). Lengths are the store's own running times. Methodology.

About this listen

Unknown Valor: A Story of Family, Courage, and Sacrifice from Pearl Harbor to Iwo Jima is an audiobook by Martha Maccallum: a 10.9-hour unabridged recording, read by Martha Maccallum, released February 25, 2020, on the Memoirs and Military (History) shelves.

The listen at a glance

Length
10.9 hrs
Narrated by
Martha Maccallum
Released
February 25, 2020
Format
Unabridged audiobook
Language
English
Store shelves
Memoirs, Military (History), The Americas
ISBN
9780062983978

How to listen to Unknown Valor: A Story of Family, Courage, and Sacrifice from Pearl Harbor to Iwo Jima free

New members at audiobooks.com get three free audiobooks with the trial.

Separately, the store's catalog carries more than 10,000 audiobooks that are always free to stream.

Start listening free

Questions listeners ask

How long is the Unknown Valor: A Story of Family, Courage, and Sacrifice from Pearl Harbor to Iwo Jima audiobook?

Unknown Valor: A Story of Family, Courage, and Sacrifice from Pearl Harbor to Iwo Jima runs 10.9 hours unabridged. At 1.5× speed that drops to roughly 7.3 hours.

Is the Unknown Valor: A Story of Family, Courage, and Sacrifice from Pearl Harbor to Iwo Jima audiobook free?

Yes, for new listeners: the trial starts you with three free audiobooks.

Who narrates Unknown Valor: A Story of Family, Courage, and Sacrifice from Pearl Harbor to Iwo Jima?

Unknown Valor: A Story of Family, Courage, and Sacrifice from Pearl Harbor to Iwo Jima is narrated by Martha Maccallum.

Is Unknown Valor: A Story of Family, Courage, and Sacrifice from Pearl Harbor to Iwo Jima worth listening to at 1.5× speed?

At 1.5× you'd finish in about 7.3 hours, saving 3.6 hours.