Birth record
Line 322 indicates that Catherine Duffy was born on September 29, 1909 in Ballaghaderreen, County Roscommon, Ireland to Michael Duffy and Ann Duffy (née Hennigan).

Extract from the 1930 census of Manhattan, New York. The pertinent information is on line 46.
The census indicates that Catherine Duffy, age 20, was a lodger at the residence of Mary Keny (née McDonagh), as was her brother, Edward Joseph Duffy (see line 45). Later on, in 1934, Edward was to marry Mary "Mae" Ellen Torpey, the neice of Mary Keny.

Extract from 1940 census of Manhattan, New York
The extract shows (starting at line 52) that Katherine Coburn, age 30, was then living with her husband, James J. Coburn, age 37, and their children, Margarite M., age 4, and John Hugh, age 1.
The census also shows (starting at line 67) that Katherine's brother Edward J. Duffy, age 32, was then living with (1) his wife Mary, age 31, (2) his son Edward Joseph, age 5, (3) his son James P., age 3 1⁄2, and (4) his daughter Mary Ann, age 1.