MC
Mary Connell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this Mary Connell across the 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 10-person household.
Age 10
b. ~1930
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | CONNELL |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Highest Grade | 6 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1930 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Madaline Connell | Daughter | — | 2 | ~1938 |
| Katherine Connell | Daughter | — | 13 | ~1927 |
| Helen Connell | Spouse | — | 37 | ~1903 |
| Elise Connell | Daughter | — | 14 | ~1926 |
| John Connell | Son | — | 5 | ~1935 |
| Elizabeth Connell | Daughter | — | 4 | ~1936 |
| Noreen Connell | Daughter | — | 9 | ~1931 |
| John Connell | Head | — | 43 | ~1897 |
| Mary Connell | Daughter | — | 10 | ~1930 |
| Michele Connell | Daughter | — | 7 | ~1933 |
Census Appearances
1930
Hudson, New …
Daughter, age 1
Hudson, New Jersey · implied b. ~1929 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connell |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Daughter, age 10
Hudson-County, New Jersey · implied b. ~1930 — 10 household members
| Surname | CONNELL |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Highest Grade | 6 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Connell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Connell
Daughter · 1940 · age 10 · b. ~1930 · New Jersey
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Sibling
Elizabeth Connell
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katherine Connell
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Connell
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michele Connell
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Noreen Connell
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Madaline Connell
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elise Connell
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Hudson-County, New Jersey
Open full size
1940 US Federal Census — Hudson-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02409-00030)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Scarlett Russell | 60 | SISTER | Nurse Private | New York |
| 42 | Ida Russell | 56 | Sister | Bookkeeper | New York |
| 43 | John Donahue | 39 | HEAD | Elec. Railroader | New York |
| 44 | Margaret Donahue | 41 | Wife | — | New Jersey |
| 45 | Margaret Donahue | 14 | Daughter | — | New Jersey |
| 46 | Dorothy Donahue | 13 | Daughter | — | New Jersey |
| 47 | John Donahue | 9 | Son | — | New Jersey |
| 48 | Charles Scarolaski | 44 | HEAD | Public Service | Poland |
| 49 | Jenny Scarolaski | 50 | Wife | Armour Service | Poland |
| 50 | Charles Scarolaski | 23 | Son | Unemployed | New Jersey |
| 51 | Mary Marridan | 43 | SISTER | National Bank | New Jersey |
| 52 | James Marridan | 19 | Nephew | 70 | New Jersey |
| 53 | Margaret Donahue | 73 | Mother | — | England |
| 54 | Margaret Donahue | 41 | Sister | National Bank | New Jersey |
| 55 | Thomas Donahue | 47 | Brother | America Express | New Jersey |
| 56 | Justus Figenbaum | 32 | HEAD | Dentist | New Jersey |
| 57 | Gertrude Figenbaum | 31 | Wife | — | New Jersey |
| 58 | Justus Figenbaum | 6 | Son | — | New Jersey |
| 59 | Albert Bullwinkel | 47 | HEAD | Credit Man | New Jersey |
| 60 | Dorothea Bullwinkel | 49 | Wife | — | New Jersey |
| 61 | Doris Bullwinkel | 16 | Daughter | — | New Jersey |
| 62 | Boris Gutmans | 64 | HEAD | Jewelry | Russia |
| 63 | Sarah Gutmans | 57 | Wife | — | Russia |
| 64 | Mary Healy | 24 | HEAD | Nurse | New Jersey |
| 65 | Catherine Duffy | 32 | HEAD | Cleaning | Ireland |
| 66 | Angeline Podloski | 28 | HEAD | Cook | Penn. |
| 67 | John Connell | 43 | HEAD | Doctor | New Jersey |
| 68 | Helen Connell | 37 | Wife | — | New Jersey |
| 69 | Elise Connell | 14 | Daughter | — | New Jersey |
| 70 | Katherine Connell | 13 | Daughter | — | New Jersey |
| 71 | Mary Lou Connell THIS PERSON | 10 | Daughter | — | New Jersey |
| 72 | Noreen Connell | 9 | Daughter | — | New Jersey |
| 73 | Michele Connell | 7 | Daughter | — | New Jersey |
| 74 | John Connell | 5 | Son | — | New Jersey |
| 75 | Elizabeth Connell | 4 | Daughter | — | New Jersey |
| 76 | Madaline Connell | 2 | Daughter | — | New Jersey |
| 77 | Louis Borgers | 49 | HEAD | Clerk In County | New York |
| 78 | Elizabeth Borgers | 36 | Wife | — | Mass. |
| 79 | Mary Borgers | 21 | Daughter | 70 | New Jersey |
| 80 | Helen Borgers | 20 | Daughter | Training For | New Jersey |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)