HartellEnglish From various place names derived from Old English heorot "hart, male deer" and hyll "hill".
HartleyEnglish Habitational name for someone originally from any of the various locations in England named Hartley, from Old English heorot "hart, male deer" and leah "woodland, clearing".
HerschelGerman, Jewish Diminutive form of Hirsch 1 or Hirsch 2. A famous bearer was the British-German astronomer William Herschel (1738-1822), as well as his sister Caroline Herschel (1750-1848) and son John Herschel (1792-1871), also noted scientists.
Hirsch 1German Means "deer, hart" in German. This was a nickname for a person who resembled a deer in some way, or who raised or hunted deer.