Patrick had petitioned to become a US citizen since 1916. Finally, he became a US citizen on May 15, 1933 at the US District Court in Providence. At that time he was living at 170 Richland Street, Cranston, RI. He was a stationary fireman. His sponsors were John H. Maguire, his son-in-law, who was a trucking contractor living at 21 College Road in Providence, RI and John H. O’Brien who was also a contractor and builder living at 100 Bolton Avenue, Providence, RI.

Patrick suffered a debilitating stroke in the mid-late 1930s. He died at the home of his son Michael, 213 Woodbine Street in Cranston on December 9, 1937. This was a three-story tenement house. Michael Dorgan occupied the first floor. Thomas A. Dorgan, Sr. occupied the second floor and Patrick and Mary Dorgan occupied the third floor.