MC
Margaret Callahan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Bronx-County, New York
Our Model Tree links this Margaret Callahan across the 1920, 1930 and 1940 US Censuses in Bronx-County, New York (XGBoost, ~Confirmed), with identified parents George & Michael — first a spouse (b.~1909), then head of a 5-person household.
Age 31
b. ~1909
Female
Spouse
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Bronx-County, New York |
| Surname | Callahan |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | New York City |
| Est. Birth Year | ~1909 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Donald Callahan | Son | — | 3 | ~1937 |
| Mary Callahan | Daughter | — | 1 | ~1939 |
| Margaret Callahan | Spouse | — | 31 | ~1909 |
| Edward Callahan | Head | — | 41 | ~1899 |
| George Jackson | Other | — | 54 | ~1886 |
Census Appearances
1920
New York, …
Daughter, age 11
New York, New York · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Callahan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Bronx, New …
Daughter, age 21
Bronx, New York · implied b. ~1909 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Callahan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Clerk |
| Industry | Apparel Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Bronx-County, New …
Spouse, age 31
Bronx-County, New York · implied b. ~1909 — 5 household members
| Surname | Callahan |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | New York |
| 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 3 locations, using XGBoost record linkage. Identified parents: father George Callahan (~0.92 confidence) and father Michael Callahan (~0.92 confidence) and mother Julia Callahan (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Callahan
b. ~1874
Source father
● Household
· direct · ~0.92
Father
Michael Callahan
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Julia Callahan
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Callahan
Spouse · 1940 · age 31 · b. ~1909 · 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 — Bronx-County, New York
Open full size
1940 US Federal Census — Bronx-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02468-00870)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Vincent Como | 62 | Head | Vignemaker | Italy |
| 2 | Frances Como | 49 | Wife | — | Italy |
| 3 | Joseph Como | 26 | Son | Presser | New York |
| 4 | Mary Como | 20 | Daughter | Pleater | New York |
| 5 | Dominick Como | 23 | Son | Operator | New York |
| 6 | Mildred Como | 16 | Daughter | Pleater | New York |
| 7 | Ernest Como | 18 | Son | — | Massachusetts |
| 8 | Salvatore Calvo | 62 | Head | Spot Welder | Italy |
| 9 | Vincenza Calvo | 63 | Wife | — | Italy |
| 10 | Michael Deliberti | 62 | Head | Laborer | Italy |
| 11 | Filomena Deliberti | 56 | Wife | — | Italy |
| 12 | Flora O. Deliberti | 25 | Daughter | Zipper Packer | New York |
| 13 | Louis Deliberti | 20 | Son | Unskilled Laborer | New York |
| 14 | Margaret Blake | 44 | Head | Plumbers Helper | Eire |
| 15 | Helen Fellow | 20 | Daughter | — | New York |
| 16 | Brenda Fellow | 0 | Granddaughter | — | New York |
| 17 | Vincenza Galizia | 66 | Head | — | Italy |
| 18 | Edward Callahan | 41 | Head | Tile Layer Helper | New York |
| 19 | Margaret Callahan THIS PERSON | 31 | Wife | — | New York |
| 20 | Donald Callahan | 3 | Son | — | New York |
| 21 | Mary Callahan | 1 | Daughter | — | New York |
| 22 | George Jackson | 54 | Boarder | — | England |
| 23 | Michael Apollo | 26 | Head | Dish Washer | New York |
| 24 | Vincenza Apollo | 26 | Wife | Chauffer | New York |
| 25 | Vito Apollo | 5 | Son | — | New York |
| 26 | Margaret Apollo | 4 | Daughter | — | New York |
| 27 | Pasquale Steccato | 24 | Head | Clerk | New York |
| 28 | Rose Steccato | 27 | Wife | Stenciller | Italy |
| 29 | Joseph Ucci | 56 | Head | Laborer | Italy |
| 30 | Celestina Ucci | 31 | Wife | — | Italy |
| 31 | Teresa Ucci | 7 | Daughter | — | New York |
| 32 | John Ucci | 8 | Son | — | New York |
| 33 | Patsie Ucci | 5 | Son | — | New York |
| 34 | Gaetano Calisi | 37 | Head | Laborer | Italy |
| 35 | Mary Calisi | 28 | Wife | — | Italy |
| 36 | Antonia Calisi | 7 | Daughter | — | New York |
| 37 | Anna Calisi | 6 | Daughter | — | New York |
| 38 | Lucy Calisi | 2 | Daughter | — | New York |
| 39 | Teresa Calisi | 2 | Daughter | — | New York |
| 40 | Maria Calisi | 0 | Daughter | — | New York |
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)