The NGC and IC catalogues contain:
3,370 galaxies brighter than magnitude 13
289 nebulae (all of them including OC/neb)
130 Planetary Nebulae (all of them)
661 Open Clusters (all of them)
124 Globular Clusters (all of them)
50 objects in other galaxies (all of them)
Six pople found more than 100 of these 4,624 NGC and IC objects:
1, William Herschel
2. John Herschel
3. James Dunlop
4. Lewis Swift
5. DeLisle Stewart
6. Edouard Stephan
The attached file lists the people who discovered more than 8 objects.
William and John Herschel did an amazing job.
Australia's first deep sky observer (James Dunlop) comes in third.
Yellow highlights those who observed from the southern hemishere.
The top 3 for each type are shown in white.
http://www.klima-luft.de/steinicke/ngcic/obs_e.htm