MH
Mary Harper — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this Mary Harper across the 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 8-person household.
Age 17
b. ~1923
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Harper |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson County |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1923 |
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 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Anne Harper | Daughter | — | 21 | ~1919 |
| Mary Harper | Daughter | — | 17 | ~1923 |
| Elizabeth Harper | Daughter | — | 10 | ~1930 |
| William Harper | Head | — | 48 | ~1892 |
| William Harper | Son | — | 19 | ~1921 |
| George Harper | Son | — | 13 | ~1927 |
| Frank Harper | Son | — | 15 | ~1925 |
| Adeline Harper | Spouse | — | 47 | ~1893 |
Census Appearances
1930
Hudson, New …
Daughter, age 6
Hudson, New Jersey · implied b. ~1924 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Daughter, age 17
Hudson-County, New Jersey · implied b. ~1923 — 8 household members
| Surname | Harper |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson County |
| Class of Worker | 0 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| 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 Harper across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Harper
Daughter · 1940 · age 17 · b. ~1923 · New Jersey
★ You are viewing this record
Sibling
George Harper
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Harper
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Harper
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anne Harper
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Harper
Sibling · 1940 · age 10
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-t0627-02411-00539)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Satchell | 27 | Son | Porter | New Jersey |
| 2 | Doris Satchell | 23 | daughter | New Worker | New Jersey |
| 3 | Anne Satchell | 18 | daughter | — | New Jersey |
| 4 | Paul Satchell | 15 | son | — | New Jersey |
| 5 | Elise Taubert | 43 | Head | — | New Jersey |
| 6 | Charles Taubert | 22 | son | Box Maker | New Jersey |
| 7 | Jane Taubert | 20 | daughter | Typist | New Jersey |
| 8 | Dorothy Taubert | 14 | daughter | — | New Jersey |
| 9 | John Taubert | 15 | daughter | — | New Jersey |
| 10 | William Harper | 48 | Head | Butcher | New Jersey |
| 11 | Adeline Harper | 47 | wife | — | New Jersey |
| 12 | Anne Harper | 21 | daughter | Typist | New Jersey |
| 13 | William Jr Harper | 19 | son | Runner | New Jersey |
| 14 | Mary Harper THIS PERSON | 17 | daughter | — | New Jersey |
| 15 | Frank Harper | 15 | son | — | New Jersey |
| 16 | George Harper | 13 | son | — | New Jersey |
| 17 | Elizabeth Harper | 10 | daughter | — | New Jersey |
| 18 | Gustave Moessner | 38 | Head | Garage Attendant | Germany |
| 19 | Mary Moessner | 35 | wife | — | Germany |
| 20 | Raymond Moessner | 13 | son | — | New Jersey |
| 21 | June Moessner | 7 | daughter | — | New Jersey |
| 22 | Jean Moessner | 7 | daughter | — | New Jersey |
| 23 | David Wilson | 38 | Head | Policeman | New Jersey |
| 24 | Emily Wilson | 39 | wife | — | New Jersey |
| 25 | Emily Wilson | 16 | daughter | Embroidery Operator | New Jersey |
| 26 | Dorothy Wilson | 15 | daughter | — | New Jersey |
| 27 | Helen Wilson | 14 | daughter | — | New Jersey |
| 28 | Phyllis Wilson | 12 | daughter | — | New Jersey |
| 29 | David Wilson | 5 | son | — | New Jersey |
| 30 | John Mcnamara | 37 | Head | Police Sergeant | New Jersey |
| 31 | Mildred Mcnamara | 35 | wife | — | New Jersey |
| 32 | John Mcnamara | 2 | son | — | New Jersey |
| 33 | Rose Rinaldo | 70 | Head | — | Italy |
| 34 | Anthony Rinaldo | 39 | son | Bookkeeper | New Jersey |
| 35 | Michael Rinaldo | 36 | son | General Clerk | New Jersey |
| 36 | Philip Flingel | 32 | Head | Salesman | New Jersey |
| 37 | Beatrice Flingel | 30 | wife | — | New Jersey |
| 38 | Joan Flingel | 5 | daughter | — | New Jersey |
| 39 | Edna Sacks | 31 | Sister-in-law | Saleslady | New Jersey |
| 40 | Albert Meninger | 73 | Head | — | New Jersey |
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)