Military Ancestor

Navy Ships and Logs Supporting guide

How Do I Research a Ship's Loss?

Research a loss from the log, the action report and the casualty records together. One source alone can mislead on date, place or cause, so a loss is settled only when the sources agree.

Published 31 October 2026 | Independent educational guidance | Deceased persons only

Filed under Navy Ships and Logs: A Method Guide

First checks before you go further

Research a loss from the log, the action report and the casualty records together. One source alone can mislead on date, place or cause, so a loss is settled only when the sources agree.

Keep the question narrow. A search for everything about a person returns nothing usable, while a search for one dated fact returns something testable. The strongest clue is often the least glamorous: a number, a date, a place. Glamorous clues, badges and stories, point in many directions at once.

Reading what the record actually says

Read appendices, maps and marginal notes as part of the entry, not as extras. An appendix can settle a place name, a date, or a name that the daily text leaves vague. Read for the unit, the ship, or the station as well as for the person. A person entry makes sense only inside the unit entry that surrounds it. An entry that gives a town but no county, or a camp but no town, is deliberately vague or locally obvious. Local knowledge, not a global search, usually settles it.

Common traps in this record type

A unit that moved, a ship that was renamed, and a camp that closed all break simple name searches. Follow dates and people, not names alone. If a unit record is missing for the exact week you need, the neighbouring weeks, and the higher formation record for that week, may still fix place and date.

Note dead ends in the timeline itself, with dates. A timeline that shows where the trail went cold is more honest, and more useful, than one that jumps the gap. A search that returns nothing proves only that nothing matched those terms in that catalogue on that day. It does not prove the record does not exist.

The order to work in

Do not skip the step that checks the filters. It feels redundant when the filters seem obvious, and it is the step that catches wrong persons. Do not let a tool, a website, or an index set the order of your work. Tools serve steps; steps do not serve tools.

StepWhat to do
1Fix the ship and the drafting dates from the personal file before opening any ship record.
2Open the log for those dates only, and note its reference.
3Check crew lists and muster entries against the personal file, name, rating and dates together.
4Use action reports and photographs only after the log for those dates has been read.

What to open after this one

A good next step narrows the search, rather than widening it. If the next record could be anything, the question is not yet sharp enough. The neighbouring guides are not a reading list. They are the next links in a chain, and the chain order matters more than the reading order. If only one thing survives this session, let it be a referenced fact, not a vivid impression.

Primary sources for this guide

Everything here is kept general and tied to official holders, so check the current position with the holder for your own case. The guide is educational information only: it is not personal professional advice, it is not a lookup service, and it settles nothing about any one person's service.

Please note: Coverage here is limited to deceased persons, and living people's privacy is protected: no material on this site identifies a living person from a service record. A holder's process, where described, should be followed as the holder currently sets it out.