Thirteen men found more than 250 NGC and IC objects.
Number of objects and Name (Arranged by year of birth)
2415 Friedrich Wilhelm Herschel
1646 * John Frederick William Herschel
280 * James Dunlop
916 Lewis Swift
319 Heinrich Louis d'Arrest
583 Albert Marth
420 Jean Marie Edouard Stephan
334 Guillaume Bigourdan
254 Francis Preserved Leavenworth
1113 Max Wolf only found IC objects.
1364 Stephane Javelle only found IC objects.
655 * DeLisle Stewart only found IC objects.
446 * Royal Harwood Frost only found IC objects.
* Four men observed from the southern hemisphere
Reference
http://www.klima-luft.de/steinicke/ngcic/obs_e.htm