MC
Mary Callahan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Bergen-County, New Jersey
Our Model Tree links this Mary Callahan across the 1920, 1930 and 1940 US Censuses in Bergen-County, New Jersey (XGBoost, ~Confirmed), with identified parents Walter & Margaret — first a daughter (b.~1915), then head of a 7-person household.
Age 25
b. ~1915
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bergen-County, New Jersey |
| Surname | Callahan |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Ridgefield Park Village |
| 1935 Residence (County) | Bergen |
| Additional Details | |
| Occupation | Typist |
| Industry | Retail Store |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 136 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Typist |
| Township / Ward | Ridgefield Park Village |
| Est. Birth Year | ~1915 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Callahan | Daughter | — | 25 | ~1915 |
| Margaret Callahan | Head | — | 55 | ~1885 |
| Thomas Callahan | Son | — | 21 | ~1919 |
| Frank Callahan | Son | — | 11 | ~1929 |
| Raymond Callahan | Son | — | 30 | ~1910 |
| Joseph Callahan | Son | — | 19 | ~1921 |
| James Callahan | Son | — | 14 | ~1926 |
Census Appearances
1920
Bergen, New …
Daughter, age 4
Bergen, New Jersey · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Callahan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New York |
| Mother's Birthplace | Italy |
| Mother Tongue | Italian |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
Daughter, age 15
Bergen, New Jersey · implied b. ~1915 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Callahan |
| Given Name | Margaret A |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New York |
| Mother's Birthplace | Italy |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Bergen-County, New …
Daughter, age 25
Bergen-County, New Jersey · implied b. ~1915 — 7 household members
| Surname | Callahan |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Ridgefield Park Village |
| 1935 Residence (County) | Bergen |
| Occupation | Typist |
| Industry | Retail Store |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 136 |
| Highest Grade | H 4 |
| 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 Callahan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Walter Callahan (~0.92 confidence) and mother Margaret Callahan (~0.92 confidence) and mother Amelia Callahan (~0.92 confidence) and mother Carmelia Callahan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Walter Callahan
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Margaret Callahan
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Amelia Callahan
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Carmelia Callahan
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Callahan
Daughter · 1940 · age 25 · b. ~1915 · New Jersey
★ You are viewing this record
Sibling
Thomas Callahan
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Callahan
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Callahan
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Callahan
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Callahan
Sibling · 1940 · age 30
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 — Bergen-County, New Jersey
Open full size
1940 US Federal Census — Bergen-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02313-00316)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Peter F. Stocky | 55 | Head | Salesman | New York |
| 2 | Margaret G. Stocky | 54 | Wife | — | New Jersey |
| 3 | Dorothy C. Stocky | 25 | Daughter | Stenographer | New York |
| 4 | Charles R. Stocky | 26 | Son | — | New Jersey |
| 5 | Marie E. Stocky | 23 | Daughter | Saleslady | New Jersey |
| 6 | Lydia D. Lannie | 16 | Niece | Waitress | New York |
| 7 | William H. Holmes | 55 | Head | Accountant | New York |
| 8 | Caroline W. Holmes | 56 | Wife | — | New York |
| 9 | Frank Blum | 61 | Brother-in-law | — | Connecticut |
| 10 | James J. Carroll | 60 | Head | Truck Driver | Michigan |
| 11 | Anna T. Carroll | 60 | Wife | — | Free State |
| 12 | Margaret D. Carroll | 25 | Daughter | — | New Jersey |
| 13 | William E. Duffy | 29 | Son-in-law | Attendant | New Jersey |
| 14 | Helen Duffy | 31 | Daughter | — | New Jersey |
| 15 | Patricia A. Duffy | 1 | Daughter | — | New Jersey |
| 16 | Liborio Audino | 61 | Head | Proprietor | Italy |
| 17 | Catherine Audino | 59 | Wife | — | Italy |
| 18 | Frank A. Scibetta | 29 | Son-in-law | Attendant | New York |
| 19 | Jennie M. Scibetta | 26 | Daughter | Bookkeeper | New York |
| 20 | Charles J. Smith | 42 | Head | Painter | New York |
| 21 | Lillian B. Smith | 48 | Wife | — | New Jersey |
| 22 | Helen R. Smith | 21 | Daughter | Stenographer | New Jersey |
| 23 | Earl W. Smith | 19 | Son | Clerk | New Jersey |
| 24 | Lois V. Smith | 17 | Daughter | — | New Jersey |
| 25 | Charles J. Smith | 16 | Son | — | New Jersey |
| 26 | Kenneth A. Smith | 15 | Son | — | New Jersey |
| 27 | June G. Smith | 13 | Daughter | — | New Jersey |
| 28 | Margaret M. Callahan | 55 | Head | — | New York |
| 29 | Raymond H. Callahan | 30 | Son | Civil Engineer | New York |
| 30 | Mary E. Callahan THIS PERSON | 25 | Daughter | Typist | New Jersey |
| 31 | Thomas P. Callahan | 21 | Son | Clerk | New Jersey |
| 32 | Joseph L. Callahan | 19 | Son | — | New Jersey |
| 33 | James F. Callahan | 14 | Son | — | New Jersey |
| 34 | Frank J. Callahan | 11 | Son | — | New Jersey |
| 35 | Carl G. Ramsen | 58 | Head | Carpenter | Sweden |
| 36 | Bertha E. Ramsen | 59 | Wife | — | Sweden |
| 37 | Gladys V. Ramsen | 30 | Daughter | Stenographer | New York |
| 38 | Doris E. Kaltenbach | 24 | Daughter | Stenographer | New York |
| 39 | Earl R. Kaltenbach | 4 | Son | — | New Jersey |
| 40 | Clara E. Lang | 70 | Head | — | Germany |
Related Census Records
Pedigree Summary
Mary + 5 siblings
Gen 1 · 4 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)