MH
Mary Hayes — 1940 US Census Record
Model Tree available1940 United States Federal Census · Passaic-County, New Jersey
Our Model Tree links this Mary Hayes across the 1920, 1930 and 1940 US Censuses in Passaic-County, New Jersey (XGBoost, ~Confirmed), with identified parents William & Alice — first a daughter (b.~1920), then head of a 5-person household.
Age 20
b. ~1920
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Passaic-County, New Jersey |
| Surname | Hayes |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Paterson City |
| 1935 Residence (County) | Passaic |
| Additional Details | |
| Highest Grade | H 3 |
| 1935 Residence | Same Place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Paterson City |
| Est. Birth Year | ~1920 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Alice Hayes | Daughter | — | 18 | ~1922 |
| Mary Hayes | Daughter | — | 20 | ~1920 |
| Catherine Hayes | Daughter | — | 16 | ~1924 |
| Alice Hayes | Head | — | 47 | ~1893 |
| Mary Hayes | Other | — | 58 | ~1882 |
Census Appearances
1920
Passaic, New …
Daughter, age
Passaic, New Jersey · implied b. ~1920 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hayes |
| Given Name | Mary K. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| 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 |
1930
Passaic, New …
Daughter, age 10
Passaic, New Jersey · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hayes |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Passaic-County, New …
Daughter, age 20
Passaic-County, New Jersey · implied b. ~1920 — 5 household members
| Surname | Hayes |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Paterson City |
| 1935 Residence (County) | Passaic |
| Highest Grade | H 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 Hayes across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Hayes (~0.92 confidence) and mother Alice Hayes (~0.92 confidence) and mother Alice Hayes (~0.92 confidence) and father Sam Hayes (~0.92 confidence) and mother Mary Hayes (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Hayes
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Alice Hayes
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Alice Hayes
b. ~1893
Source mother
● Household
· direct · ~0.92
Father
Sam Hayes
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Mary Hayes
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Hayes
Daughter · 1940 · age 20 · b. ~1920 · New Jersey
★ You are viewing this record
Sibling
Catherine Hayes
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Hayes
Sibling · 1940 · age 18
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 — Passaic-County, New Jersey
Open full size
1940 US Federal Census — Passaic-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02429-00485)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Oldfield | 65 | head | Weaver | England |
| 2 | Annie Oldfield | 69 | wife | — | England |
| 3 | Annie Farray | 71 | head | — | England |
| 4 | Sarah Smallwood | 76 | sister | — | England |
| 5 | James Boyle | 30 | head | Millwright | New Jersey |
| 6 | Helen Boyle | 21 | wife | — | New Jersey |
| 7 | Elizabeth Sutten | 78 | head | — | England |
| 8 | Julia Scheedler | 48 | head | — | Germany |
| 9 | Helen Scheedler | 23 | daughter | Saleslady | New Jersey |
| 10 | Madeline Scheedler | 22 | daughter | Beautician | New Jersey |
| 11 | Arthur Scheedler | 21 | son | Electrician | New Jersey |
| 12 | Percy Patterson | 26 | head | Service Man | New Jersey |
| 13 | May Patterson | 26 | wife | Sewing Machine | New Jersey |
| 14 | Bartow Van Winkle | 40 | head | Counterman | New Jersey |
| 15 | Eliot Van Winkle | 40 | wife | — | New Jersey |
| 16 | Lois Van Winkle | 9 | daughter | — | New Jersey |
| 17 | Arthur Van Buskirk | 36 | head | Florist | New Jersey |
| 18 | Myrtle Van Buskirk | 35 | wife | — | New Jersey |
| 19 | Marion Van Buskirk | 14 | daughter | — | New Jersey |
| 20 | Doris Van Buskirk | 13 | daughter | — | New Jersey |
| 21 | Richard Van Buskirk | 11 | son | — | New Jersey |
| 22 | Herman Merten | 61 | head | Hatter (Cleaner) | Germany |
| 23 | Olga Merten | 54 | wife | — | Germany |
| 24 | Andrew Brennan | 56 | head | Salesman | New Jersey |
| 25 | John Gorter | 57 | head | Carpenter | Rhode Island |
| 26 | Josephine Gorter | 52 | wife | — | New Jersey |
| 27 | John Schuhman | 30 | step son | Ribbon Weaver | New Jersey |
| 28 | Hudson Chle | 30 | head | Driver Salesman | New Jersey |
| 29 | Margaret Chle | 29 | wife | Office | New Jersey |
| 30 | Alice Hayes | 47 | head | — | Eire |
| 31 | Mary Hayes THIS PERSON | 20 | daughter | — | New Jersey |
| 32 | Alice Hayes | 18 | daughter | — | New Jersey |
| 33 | Catherine Hayes | 16 | daughter | — | New Jersey |
| 34 | Mary Hayes | 58 | sister in law | Office Clerk | New Jersey |
| 35 | Thomas Bryan | 57 | head | — | Scotland |
| 36 | Martha Bryan | 57 | wife | — | Scotland |
| 37 | Jessie Bryan | 31 | daughter | Sewer | Scotland |
| 38 | Thomas Bryan | 29 | son | Silk Finisher | Scotland |
| 39 | Elizabeth Bryan | 27 | daughter | Sewer | Scotland |
| 40 | Thomas Belfi | 62 | head | Repair Man | Italy |
Pedigree Summary
Mary + 2 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)