Hi Bob . . .
Welcome to Ireland Reaching Out . . . .
I presume you aware of the Public Family Tree . . .on Ancestry.com . . of the Moore Family . . . under the title of "gmoore667" . . . listing all those names and family connections.
As you are most likely aware . . . records stretching back to 1800 . . are rare . . . but . . . not impossible . .
Your real interest appears to be a re-connect to living relations . . . to this end . . you should make contact with the Historical Society in that area , , ,
So. . first I searched . . . on Roots (paid site) . . .for any records of Dagg and/or Hodgins . . in the area of North Tipperary . . nothing that far back . . .
Next I went to Ireland's National Census . . . of which there is little to find . . . prior to 1901.
Looking at 1901 . . . I can see the relations of the Hodgins . . are still living in the area of Terryglass Kilbarron Parish and Cloughjordan . . .
Next I would suggest , , , A published book , , , which your local Library can access for you . . . which contains many many references to the
Hodgins / Dagg emigration to Canada . . at that time . . . from N.Tipperary
The book is " Irish migrants in the Canadas " A New Approach . . . author ,,, Bruce S.Elliott . . . ISBN 0-7735-0607-1 or ISBN 0-7735-0703-5
This book . . . on page 99 . . . has references to a James Hodgins , , , of Biddulph Co. Canada . . . ( home to the infamous " Black Donnellys ")
So Bob . . I hope the above will be of some assistance . . .
Cheers . . . Eamonn.