Tombstone reads born March 15, 1841. He died of carcinoma of the face. He first arrived in the U. S. 1 Nov 1865 from Pig's Eye, Quebec.
An 1896 map of Avon Township, Stearns County shows that William Rooney owned about 96.4 acres in Section 10 of Avon Township (about 3 miles NNW of the city of Avon), and his son J. P. Rooney owned 63.5 acres adjacent to that, including an abode.
The 1900 census shows they had 8 children of which 5 are alive. The 1905 census has an 8-year-old John Rooney living with them, born in New York, his parents born in Canada. He is probably one of the orphan train children; the 1910 census says he is an adopted son.
They also have a William Murphy, age 10, living with them. This may be their deceased daughter Elizabeth's son, though he's back with his family in 1910.
The 1910 census says they arrived in the U.S. in 1886, but it was perhaps meant to be 1866.