MC
Margaret Callahan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Margaret Callahan across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents Thornton & Margaret — first a spouse (b.~1910), then head of a 9-person household.
Age 30
b. ~1910
Female
Spouse
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Callahan |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Boro Brooklyn |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | Boro Brooklyn |
| Est. Birth Year | ~1910 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Maureen Callahan | Daughter | — | 1 | ~1939 |
| Frank Callahan | Head | — | 38 | ~1902 |
| Franklin Callahan | Son | — | 4 | ~1936 |
| Daniel Callahan | Son | — | 2 | ~1938 |
| Dorothy Callahan | Daughter | — | 3 | ~1937 |
| Ellen Callahan | Daughter | — | 6 | ~1934 |
| Eileen Callahan | Daughter | — | 10 | ~1930 |
| Margaret Callahan | Spouse | — | 30 | ~1910 |
| Herbert Callahan | Son | — | 9 | ~1931 |
Census Appearances
1920
Kings, New …
Daughter, age 10
Kings, New York · implied b. ~1910 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Callahan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Kings, New …
Daughter, age 20
Kings, New York · implied b. ~1910 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Callahan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Spouse, age 30
Kings-County, New York · implied b. ~1910 — 9 household members
| Surname | Callahan |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Boro Brooklyn |
| 1935 Residence (County) | Kings |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Margaret Callahan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thornton Callahan (~0.92 confidence) and mother Margaret Callahan (~0.92 confidence) and mother Mary Callahan (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thornton Callahan
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Margaret Callahan
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Mary Callahan
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Callahan
Spouse · 1940 · age 30 · b. ~1910 · New York
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Kings-County, New York
Open full size
1940 US Federal Census — Kings-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02559-00923)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Stanley Stroskasty | 32 | Head | Labor | New York |
| 42 | Julia Stroskasty | 32 | Wife | — | Poland |
| 43 | Constance Stroskasty | 4 | Daughter | — | New York |
| 44 | Mary Stroskasty | 0 | Daughter | — | New York |
| 45 | James Venezia | 33 | Head | Labor | Italy |
| 46 | Erma Venezia | 35 | Wife | — | Italy |
| 47 | Frank Venezia | 15 | Son | — | Italy |
| 48 | August Venezia | 2 | Son | — | New York |
| 49 | Joseph Venezia | 1 | Son | — | New York |
| 50 | Infant | 0 | Daughter | — | New York |
| 51 | Frank Callahan | 38 | Head | Laborer | New York |
| 52 | Margaret Callahan THIS PERSON | 30 | Wife | — | New York |
| 53 | Eileen Callahan | 10 | Daughter | — | New York |
| 54 | Herbert Callahan | 9 | Son | — | New York |
| 55 | Ellen Callahan | 6 | Daughter | — | New York |
| 56 | Franklin Callahan | 4 | Son | — | New York |
| 57 | Dorothy Callahan | 3 | Daughter | — | New York |
| 58 | Daniel Callahan | 2 | Son | — | New York |
| 59 | Maureen Callahan | 1 | Daughter | — | New York |
| 60 | Carmello Slonecko | 46 | Head | — | Poland |
| 61 | Sophie Slonecko | 21 | Daughter | New Worker | New York |
| 62 | Anna Slonecko | 18 | Daughter | — | New York |
| 63 | Mary Slonecko | 17 | Daughter | — | New York |
| 64 | Rose Slonecko | 13 | Daughter | — | New York |
| 65 | Joseph Kashuba | 53 | Head | Longshore | Poland |
| 66 | Mary Kashuba | 50 | Wife | — | Austria |
| 67 | John Kashuba | 20 | Son | — | New York |
| 68 | Alga Kashuba | 17 | Daughter | — | New York |
| 69 | Nicholas Kashuba | 15 | Son | — | New York |
| 70 | Helen Kashuba | 12 | Daughter | — | New York |
| 71 | William Howard | 46 | Head | Captain | New York |
| 72 | Philena Howard | 36 | Wife | — | New York |
| 73 | Lucille Howard | 12 | Daughter | — | New York |
| 74 | Frank David | 56 | Head | Longshore | Poland |
| 75 | Catherine David | 57 | Wife | — | Poland |
| 76 | Caroline David | 24 | Daughter | Leafs | New York |
| 77 | Nellie David | 15 | Daughter | — | New York |
| 78 | Nedward Shiller | 42 | Head | Labor | Germany |
| 79 | Anna Shiller | 18 | Daughter | — | New York |
| 80 | Albert Mendel | 63 | Lodger | Dishwasher | Germany |
Pedigree Summary
Margaret
Gen 1 · 3 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)