Before the Needles

A detailed state by state listing of 14,490 executions that occurred under civil authority in the United States or within territory that later became the United States. From George Kendal being shot for espionage in Virginia (1608) until Gary Gilmore met his maker for murder in Utah (1977), it includes (when known) the convict's name, age, race, sex, occupation, crime, date of execution, method of execution and whether it was a single or multiple execution.
[The original link is broken. This link points to an archived copy on the Wayback Machine]

BlackSheepAncestors.com

Search for your blacksheep ancestors in free genealogical prison and convict records, historical court records, executions, insane asylum records and biographies of famous outlaws, criminals & pirates in the United States, United Kingdom and Canada.

Capital Punishment in Canada - Canada Death Penalty Index

List of prisoners executed in Canada. Listed chronologically by province. Includes name, date, location, age, occupation, and crime.

History of Executions | Criminal Justice Degree

A brief history of executions in the United States.

State of Kansas Legal Hangings, Genealogy Trails

List of legal hangings done by the State of Kansas from 1862 thru 1965 along with the individual hangings news articles.