Over the last 20years I have had contact with a number of people researching "Seery" from Ireland and when I found they were researching other than MY DIRECT Seery line I did not keep the email addresses.
However, I remember a few names and one person fully involved in a re-union of Seery (Crookwell) descendents was Coleen Levett (COLEENLEVETT) stored on the SEERY message board.
Another was a Peter Gray of New Zealand also on this message board.
You might seek out those messages on Ancestry.com.au so that you can make contact with those that have a comprehensive list of Seery (Crookwell) descendents.
The further you go without making contact with those who have already done the "leg work" will mean that you will uncover many, many, many Seery(s) that are NOT related.
I have met other Seery descendents in Ireland that appear not to be related to my ggrandparents.
I visited Crokwell and Pejar and searched cemeteries in that area before finding that family was not related.
Should you not obtain the necessary information from the researchers I have mentioned and need further assistance I will look back into my information (full large filing cabinet)to seek out names for you to check with.