Here is a VERY late addition to this thread.
Lacaille's catalogue can be found at:
http://www.seds.org/messier/xtra/history/lacaille.html
The Dunlop 100 can be found at:
http://www.seds.org/messier/xtra/similar/dunlop100.html
The original Dunlop catalogue is at:
http://www.ngcic.org/Historical_Record/default.htm
The NGC catalogue with the name of the person who discovered each object is at:
http://www.ngcic.org/public_HCNGC/HCNGC.htm
For both the NGC & IC catalogues try.
http://www.ngcic.org/steinicke/default.htm
For images of all NGC objects try:
http://www.ngcic.org/dss/dss_ngc.asp
I use a catalogue of 300 M NGC & IC objects .
100 Clusters
100 Nebulae
100 Galaxies
Let me know if you want a copy.