These are the first descriptions of these 5 objects arranged by the date found. It must have been exciting to find these DSOs.
My comments are in ().
Dunlop 322 Neb Car NGC 3324 1/5/1826
A star of the 7th magnitude, involved in faint nebula.
(Between Neb N3372 = eta Car and OC N3293)
Dunlop 413 OC Ara NGC 6193 14/5/1826
A cluster of small stars, with a bright star in the preceding side. A very considerable branch or tail proceeds from the north side, which joins a very large cluster.
(He did not see the associated Neb N6188)
Dunlop 564 OC & PN Pyx NGC 2818 28/5/1826
A pretty large faint nebula of a round figure, 6' or 8' diameter; the nebulosity is faintly diffused to a considerable extent. There is a small nebula in the north preceding side, which is probably a condensation of the faint diffused nebulous matter; the large nebula is resolvable into stars with nebula remaining.
(Did he see the PN? What do you think?)
The image below is from
http://www.ngcic.org/dss/dss_ngc.asp
Dunlop 457 GC Sco NGC 6388 5/6/1826
A beautiful round nebula, about 5' diameter, with a bright round well-defined disk or nucleus, about 15" diameter, exactly in the centre; this has the appearance of a planet surrounded by an extremely faint diluted atmosphere; there is a small star involved in the faint atmosphere: the atmosphere is at least 6' diameter. Figure 18.
Dunlop 262 Gx Pav NGC 6744 25/7/1826
A pretty large very faint nebula, about 5’ or 6’ diameter, slightly bright towards the centre; a minute star is north of the nebula, and two stars of the 7th magnitude preceding. (A low surface brightness Gx)