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Mary Mccormick — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Essex, New Jersey
Our Model Tree links this Mary Mccormick across the 1910, 1920 and 1930 US Censuses in Essex, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1877), then head of a 8-person household.
Age 53
b. ~1877
Female
Head
Born: Ireland
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Essex, New Jersey |
| Surname | McCormick |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1899 |
| Age at First Marriage | 24 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | Irish Eng. |
| Home Owned/Rented | R |
| Home Value / Rent | $42 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Newark City |
| Est. Birth Year | ~1877 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Mccormick | Daughter | — | 15 | ~1915 |
| Josephine Mccormick | Daughter | — | 18 | ~1912 |
| Catherine Mccormick | Daughter | — | 21 | ~1909 |
| Mary Mccormick | Head | — | 53 | ~1877 |
| Nora Frien | Other | — | 10 | ~1920 |
| John O'Brien | Other | — | 26 | ~1904 |
| Maurice Frien | Other | — | 19 | ~1911 |
| Dominick Linger | Other | — | 48 | ~1882 |
Census Appearances
1910
Essex, New …
Spouse, age 30
Essex, New Jersey · implied b. ~1880 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCormick |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 8 |
| Children Born | 2 |
| Children Living | 2 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Essex, New …
Head, age 41
Essex, New Jersey · implied b. ~1879 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCormick |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1889 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1905 |
| Birthplace (normalized) | ireland |
1930
Essex, New …
Head, age 53
Essex, New Jersey · implied b. ~1877 — 8 household members
| Surname | McCormick |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1899 |
| Age at First Marriage | 24 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | Irish Eng. |
| Home Owned/Rented | R |
| Home Value / Rent | $42 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mary Mccormick across 3 US Census years (1910, 1920 and 1930) in Essex, New Jersey, using XGBoost record linkage.
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This person
Anchor record
Mary Mccormick
Head · 1930 · age 53 · b. ~1877 · New Jersey
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Essex, New Jersey
Open full size
1930 US Federal Census — Essex, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1337:0908)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | A. H. Cuervo | 33 | Head | Foreman | Spain |
| 2 | Annetta Cuervo | 23 | Wife-H | — | New Jersey |
| 3 | Betty Cuervo | 3 | Daughter | — | New Jersey |
| 4 | Mary Mccormick THIS PERSON | 53 | Head | — | Ireland |
| 5 | Catherine Mccormick | 21 | Daughter | Weaver | New Jersey |
| 6 | Josephine Mccormick | 18 | Daughter | Weaver | New Jersey |
| 7 | Mary Mccormick | 15 | Daughter | — | New Jersey |
| 8 | Dominick Linger | 48 | Boarder | Laborer | Ireland |
| 9 | John O'Brien | 26 | Boarder | Assistant Mech. | Pennsylvania |
| 10 | Maurice Frien | 19 | Boarder | Laborer | New Jersey |
| 11 | Nora Frien | 10 | Boarder | — | New Jersey |
| 12 | Anna Katzmarean | 42 | Head | — | Austria |
| 13 | Joseph Katzmarean | 20 | Son | Inspector | West Virginia |
| 14 | Ann Katzmarean | 19 | Son | Helper Brass | West Virginia |
| 15 | Anna Katzmarean | 17 | Daughter | Inspector | West Virginia |
| 16 | Stanley Katzmarean | 15 | Son | — | West Virginia |
| 17 | Jennie Katzmarean | 14 | Daughter | — | West Virginia |
| 18 | Julia Katzmarean | 12 | Daughter | — | West Virginia |
| 19 | Josephine Katzmarean | 10 | Daughter | — | West Virginia |
| 20 | Pauline Katzmarean | 9 | Daughter | — | West Virginia |
| 21 | Mary Katzmarean | 7 | Daughter | — | West Virginia |
| 22 | Anthony Katzmarean | 5 | Son | — | West Virginia |
| 23 | Peter Novelli | 29 | Head | Waiter | Italy |
| 24 | Ann Novelli | 26 | Wife-H | — | New York |
| 25 | Marie Novelli | 1 | Daughter | — | New Jersey |
| 26 | Joseph Barbero | 22 | Brother-in-L | Helper | New York |
| 27 | James R. Hampton | 57 | Head | Salesman | Scotland |
| 28 | Annie K. Hampton | 51 | Wife-H | — | New Jersey |
| 29 | Alex Hampton | 18 | Son | Clerk | New Jersey |
| 30 | Chas Hampton | 16 | Son | Office Clerk | New Jersey |
| 31 | Anna Hampton | 15 | Daughter | — | New Jersey |
| 32 | Agnes Hampton | 11 | Daughter | — | New Jersey |
| 33 | Harry Stein | 35 | Head | Conductor | New Jersey |
| 34 | Mary Stein | 30 | Wife-H | — | New Jersey |
| 35 | Harry Sr. Wealer | 58 | Head | Conductor | Pennsylvania |
| 36 | Gertrude Wealer | 43 | Wife-H | — | Pennsylvania |
| 37 | Harry Jr. Wealer | 19 | Son | Truck Driver | Pennsylvania |
| 38 | Marie Wealer | 17 | Daughter | — | Pennsylvania |
| 39 | Victor Wealer | 14 | Son | — | Pennsylvania |
| 40 | Jessie Wealer | 11 | Son | — | Pennsylvania |
| 41 | Dorothy Wealer | 8 | Daughter | — | Pennsylvania |
| 42 | Arthur Benninge | 27 | Head | Gas Sta. Atten. | New Jersey |
| 43 | Pietro Pavan | 58 | Head | — | Italy |
| 44 | Walter Pavan | 30 | Son | Officer | New Jersey |
| 45 | John Pavan | 22 | Son | Mechanic | New Jersey |
| 46 | Elizabeth Pavan | 20 | Daughter | — | New Jersey |
| 47 | Mary Peters | 80 | Head | — | New Jersey |
| 48 | Claude A. Sr. Lewis | 39 | Head | Self | New Jersey |
| 49 | Katherine Lewis | 38 | Wife-H | — | New Jersey |
| 50 | Theodore Jr. Lewis | 11 | Son | — | New Jersey |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)