No doubt this list of chords is very helpful but as tina said - it can't be complete. There are many possibilities to play the same chords on the push or pull. And you do not always need the full harmonies.
Since you played guitar you will certainly know what notes make a special chord, e.g. D major ist D-F#-A. This helps you to try and find out how the chords sound on the concertina and how to do it. You will find some fingerings more difficult as others and you'll prefer the one or other sound of the same chord. If you play for example an E minor you could play E on push and enclude low E and low B and low G or replace these by higher E-B or G. Just try find find out.
I wish you pleasure and patient neighbours