Note - 1850, 1860 & 1870 census records do not show family relationships, marital status or parental birthplaces.
Step children are not enumerated as “step” children Adopted children are not enumerated as “adopted” Grand children are not enumerated as “grand children” Orphaned children were not enumerated as "orphan"
1850 is the 1st census that shows all family members
1880 is the 1st census that shows parental birthplaces and family relationships +++
Is there a "H" or "h" next to his address in the city directorry?These letters indicate "home address".
1870 - Name: Lucy Mcnevin Age in 1870: 55 Birth Year: abt 1815 Birthplace: Ireland Home in 1870: New York Ward 17 District 12, New York, New York Race: White Gender: Female Post Office: Station D
Wm Mcnevin 20, Ire - porter  Joseph Mcnevin 17, IRE - office clerk Charles Mcnevin 14, NY Olivia Mcnevin 10, NY Bridget Mcnevin 6, NY Lucy Mcnevin 55, IRE [aka = Lucinda???????] Patrick Omeara 38, IRE - painter, unknown relationship Annie Omeara 27, NY - unknown relationship Hannah Omeara 10, NY - unknown relationship
Charles, Olivia & Bridget coud be Lucy's children...
source - Source Citation: Year: 1870; Census Place: New York Ward 17 District 12, New York, New York; Roll: M593_998; Page: 490A; Image: 366; Family History Library Film: 552497.
1880 - Name: William C. Mc Nevins Age: 25 Birth Year: abt 1855 Birthplace: Ireland Home in 1880: New York City, New York, New York Race: White Gender: Male Relation to Head of House: Self (Head) Marital Status: Married Spouse's Name: Margaret Mc Nevins Father's Birthplace: Ireland Mother's Birthplace: Ireland Occupation: Plumber
William C. Mc Nevins 25, IRE - plumber Margaret Mc Nevins 24, NY John H. Mc Nevins 5, NY Mary A. Mc Nevins 3, NY
1880 - This is not the samw William as in 1870. Each person must age either 9 or 10 years from one census to the next.1870 census William should be 29/30
New York, Census of Inmates in Almshouses and Poorhouses, 1830-1920 Name: Wm McNevin Gender: Male Age: 62 Birth Year: abt 1851 Birth Place: Admission Date: 25 Feb 1913 Father's Name: John Father's Birth Place: Ireland Mother's Name: Lucinda McNamara Mother's Birth Place: Ireland wife's name - Bridget McNevin