Mark:
If they were living in New Haven, I think I located them on the 1900 census. James last name was Bagley and he emigrated in 1879. Margaret came over in 1880 as you indicated. They were amrried in 1883 and had six living children in 1900: Mary Jennie Katie James Margaret Gertrude.
I then found this citation on Ancestry.
James J. Bagley was born in Killorglin, County Kerry, Ireland, in June of 1862, to Michael (1832-1936) and Margaret (McCrohan) Begley (1838-1934). He emigrated to Connecticut in 1879, and married Margaret Lynch (1864-c. 1939) in 1884.
Although he was born with the surname, Begley, for unknown reasons, possibly at the time he entered the U.S., James Begley's surname was changed to Bagley. He and all his descendants used the name Bagley, while the rest of his extended family, including many who emigrated to the U.S., continued to use the name Begley.
Oscar-winning American actor Ed Begley, Sr. (1901-1970), was James Bagley's nephew.
James and Margaret Bagley lived in Waterbury and New Haven, CT, and later in Boston. They had eight children: five daughters - Jane "Jennie" (1886-1966); Mary Katherine "Katie" (1888-1971), Catherine (b.1893), Margaret (1895-1974) and Gertrude (1898-1909); and three sons - James (1892-1937), Joseph (1901-1978) and Francis "Bunny" (1903-1980).
Mr. Bagley worked in the construction business (as a stone mason), and moved his family to Boston sometime around 1900, in search of work. He was employed with a number of construction projects around the city, including the famous Little Building, at the corner of Tremont and Boylston Streets, which was built in 1917.
James Bagley died suddenly, on June 7, 1918, in Miami, FL, at age 56. He was preceded in death by daughter, Gertrude, and was survived by his wife and remaining seven children.
Roger