Place of migration
Migrated to/Born in USA

Lived in Terrydremon townland just south of Limavady.
Married Mary Kane (1835-1903) and had 9 children - 6 baptized in Dungiven RC parish Derry (John (~ 1863 but no record), Patrick, Mary Ann, Andrew, Mary (E?) and Ann were all listed as living in Terrydremon in the baptismal records), before immigrating to Philadelphia Pa, and last 3 were born in Philly (Sarah, Ellen and Elizabeth).
Denis was a blacksmith and his son John (my great grandfather) was as well. 
Other than the baptismal records of their children, I have had little success in finding them in other records, or learning more about his wife Mary Kane. 
I do have DNA connections to a Kane family from nearby, but no common ancestor as neither of us can get past the start of legal records.

Additional Information
Date of Birth 1st Jan 1832 (circa)
Date of Death 18th Mar 1904 VIEW SOURCE

Some communities associated with this ancestor

Some ancestors associated with these communities

Some buildings associated with these communities