Questions to Ask Before Accepting an Online Tree

The Ancestor Hunt regularly adds and updates new collection links, as well as searches for and fixes broken links.
(This page's most recent update is May 2026)

Get all free genealogy resources for your state, organized and ready to use — The Research Library

Online family trees can provide valuable clues, but they often contain errors, assumptions, or incomplete information. Evaluating the reliability of a tree before accepting its conclusions is essential for accurate research.

Source and Evidence Questions

  • Are sources provided – Does the tree cite records or documents?
  • Are sources original or secondary – Are they based on actual records or other trees?
  • Do multiple sources support the same fact – Is information consistent across records?
  • Are citations specific – Can the source be located and verified?

Consistency and Accuracy

  • Do dates make sense – Are birth, marriage, and death dates logical?
  • Are locations consistent – Do places align with known migration patterns?
  • Are relationships clearly supported – Is there evidence connecting family members?
  • Are there conflicting details – Do different entries contradict each other?

Research Depth

  • Is the tree fully developed or sparse – Does it include detailed information?
  • Are notes included – Does the researcher explain conclusions?
  • Are there attached documents or images – Supporting evidence available?
  • Are multiple generations documented carefully – Or filled with assumptions?

Red Flags

  • Lack of sources – No documentation provided.
  • Exact dates without evidence – Suspicious precision.
  • Large numbers of copied individuals – Possible duplication from other trees.
  • Famous ancestors without proof – Unsupported claims.

Research Approach

  • Treat online trees as clues, not facts – Use them as starting points.
  • Verify each claim independently – Confirm with reliable records.
  • Compare with other trees cautiously – Avoid copying errors.
  • Build your own conclusions based on evidence – Do not rely solely on others.

Download the Quicksheet PDF

To obtain the Quicksheet PDF of this information, download it by clicking on the Download button below: 

For all the previously published Quick Reference Guides, click on QuickSheets. 


If you use Quicksheets often, the Quicksheet Vault puts 390+ of them in one organized place — clean, printable, and easy to reuse whenever you need them. Whether you keep digital references handy or build your own genealogy binder, the Vault makes research simpler. Learn more about the Quicksheet Vault HERE

Leave a Reply

Your email address will not be published. Required fields are marked *