Henry VIII of England | Henry VIII | Henry Kissinger | Henry Wadsworth Longfellow | Henry II of England | Henry II | Henry III of England | Henry IV of France | Henry IV | Henry | Henry Ford | Henry James | Henry VII of England | Henry III | Henry Moore | Henry Miller | Henry I of England | Henry Clay | Henry IV of England | Patrick Henry | Henry Mancini | Henry V | Henry David Thoreau | Joseph Henry Blackburne | Henry V of England | Henry VI of England | Henry VII | Henry II of France | Henry Fonda | John Henry Newman |
He also, along with Williamina Fleming designed a stellar classification system based on an alphabetic system for spectral classes that was first known as the Harvard Stellar Classification and became the basis for the Henry Draper Catalog.
In the late 19th century large-scale photographic spectroscopic surveys of stars were performed at Harvard College Observatory, producing spectral classifications for tens of thousands of stars, culminating ultimately in the Henry Draper Catalog.