I know the name Dunlop mainly from a double star perspective as they are tagged DUN (number). I wasn't aware of just how broad Dunlop's contributions were until you started posting about it a while back. Thanks for the database and the interesting research and historical attachments.
I also agree that Herschel's criticisms were too broad and overly harsh. Dunlop should get the recognition he deserves.
The observations he made from Parramatta are not known well enough and you are to be congratulated on educating us on the beginnings of Australian astronomy and its important contributions globally.