I see your combo w/ the Julia in 1920, but that other couple with the same names? in PA -- there is a 20 yrs difference in Dennis/Winnie's ages ... are you looking at 2 different families?Or did I miss something.
To solve this -- you need Winnie's death cert/obit.
And the CT death cert is credible ... https://familysearch.org/pal:/MM9.1.1/VZL1-ZYY
Winnie arrived 1903 & Julia 1906 ....
Name: Winnifred Gallagher [Winifred Gallagher] Age: 32 Birth Year: abt 1888 Birthplace: Ireland Home in 1920: Manhattan Assembly District 11, New York, New York Race: White Gender: Female Immigration Year: 1903** Relation to Head of House: Wife Marital Status: Married Spouse's Name: Dennis Gallagher Father's Birthplace: Ireland Mother's Birthplace: Ireland Able to read: Yes Able to Write: Yes Neighbors: View others on page Household Members: Name Age Dennis Gallagher 30 Winnifred Gallagher 32 Margaret Gallagher 2 [2 6/12] Julia Conroy 34 av'd 1906
1930 - Northern IRE?
ame: Winifred Gallahger Gender: Female Birth Year: abt 1888 Birthplace: Northern Ireland Race: White Home in 1930: Greenwich, Fairfield, Connecticut View Map Marital Status: Married Immigration Year: 1903 Relation to Head of House: Wife Spouse's Name: Dennis A Gallahger Father's Birthplace: Northern Ireland Mother's Birthplace: Northern Ireland Name Age Dennis A Gallahger 40 Winifred Gallahger 42 Margaret Gallahger 12 Mary Gallahger 9 John Gallahger 1 [1 2/12]
1940 Name: Winifred Gallgher Age: 53 Estimated Birth Year: abt 1887 Gender: Female Race: White Birthplace: Irish Free State Marital Status: Widowed Relation to Head of House: Head Home in 1940: Greenwich, Fairfield, Connecticut View Map Street: Hanthorn Farm: No Inferred Residence in 1935: Greenwich, Fairfield, Connecticut Residence in 1935: Same House Sheet Number: 61A Number of Household in Order of Visitation: 183 Occupation: Housekeeper House Owned or Rented: Owned Value of Home or Monthly Rental if Rented: 2700 Attended School or College: No Highest Grade Completed: Elementary school, 7th grade Hours Worked Week Prior to Census: 55 Class of Worker: Wage or salary worker in private work Weeks Worked in 1939: 52 Income: 520 Income Other Sources: Yes Neighbors: View others on page Household Members: Name Age Winifred Gallgher 53 Margaret Gallgher 22 Mary Gallgher 19 John Gallgher 11
Residents of a house 6 in Ballyglass (Neale, Mayo) Show all information Surname Forename Age Sex Relation to head Religion Conroy Michael 50 Male Head of Family Catholic Conroy Mary 52 Female Wife Catholic Conroy Catherine 22 Female Daughter Catholic Conroy Julia 17 Female Daughter Catholic Conroy Winfred 14 Female Daughter Catholic Conroy Nora 12 Female Daughter Catholic Luty Nora 50 Female Sister in Law Catholic