Cahill, who was 73, died March 11 as a result of injuries sustained in a car accident on Feb. 25.
The Ardkill, County Cavan native was a popular figure and known to many because of his ownership of the Woodside Steak House from 1980 to 1997.
Cahill was the beloved husband of Breda Cahill and the late Anne Cahill and a father of five. He is also survived by a broader family in the New York area, Ireland and the UK.
Following a funeral Mass on Monday, March 15, at St. Joseph's Roman Catholic Church in Oradell, New Jersey, Cahill was laid to rest at Maryrest Cemetery in Mahwah, NJ.