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 Daniel & John — first a daughter (b.~1912), then head of a 3-person household.
Age 28
b. ~1912
Female
Daughter
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bronx-County, New York |
| Surname | Callahan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | N.Y.C. |
| 1935 Residence (County) | Bronx |
| Additional Details | |
| Occupation | Tele. operator |
| Industry | Dept store |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | H 4 |
| 1935 Residence | N.Y. |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Tele. Operator |
| Township / Ward | Nyc |
| Est. Birth Year | ~1912 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Nora Callahan | Spouse | — | 68 | ~1872 |
| Margaret Callahan | Daughter | — | 28 | ~1912 |
| John Callahan | Head | — | 76 | ~1864 |
Census Appearances
1920
Bronx, New …
Daughter, age 9
Bronx, New York · implied b. ~1911 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Callahan |
| Given Name | Margaret E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| 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 |
| Mother Tongue | English |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Bronx, New …
Daughter, age 19
Bronx, New York · implied b. ~1911 — 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 | 19 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Bronx-County, New …
Daughter, age 28
Bronx-County, New York · implied b. ~1912 — 3 household members
| Surname | Callahan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | N.Y.C. |
| 1935 Residence (County) | Bronx |
| Occupation | Tele. operator |
| Industry | Dept store |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | H 4 |
| 1935 Residence | N.Y. |
| 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 Daniel Callahan (~0.92 confidence) and father John Callahan (~0.92 confidence) and father Miles Callahan (~0.92 confidence) and mother Martha Callahan (~0.92 confidence) and mother Nora Callahan (~0.92 confidence) and mother Theresa Callahan (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Daniel Callahan
b. ~1888
Source father
● Household
· direct · ~0.92
Father
John Callahan
b. ~1864
Source father
● Household
· direct · ~0.92
Father
Miles Callahan
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Martha Callahan
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Nora Callahan
b. ~1872
Source mother
● Household
· direct · ~0.92
Mother
Theresa Callahan
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Callahan
Daughter · 1940 · age 28 · b. ~1912 · 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-t0627-02474-00447)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Callahan | 76 | Head | Carpenter | Eire |
| 42 | Nora Callahan | 68 | Wife | — | Eire |
| 43 | Margaret Callahan THIS PERSON | 28 | Daughter | Tele. Operator | New York |
| 44 | Samuel Askinosi | 42 | Head | Painter | Russia |
| 45 | Ida Askinosi | 40 | Wife | — | Hungary |
| 46 | David Askinosi | 15 | Son | — | New York |
| 47 | Lawrence Askinosi | 12 | Son | — | New York |
| 48 | Roslyn Askinosi | 9 | Daughter | — | New York |
| 49 | Harry Graff | 50 | Head | Ladies Coats Examiner | Austria |
| 50 | Sadie Graff | 53 | Wife | — | Austria |
| 51 | Saul Graff | 23 | Son | Mechanic | New York |
| 52 | Florence Graff | 21 | Daughter | Examiner - Ladies Coats | New Jersey |
| 53 | Philip Lichter | 54 | Head | Operator Dressmaker | Russia |
| 54 | Yetta Lichter | 49 | Wife | — | Austria |
| 55 | Dorothy Lichter | 25 | Daughter | Salesgirl | New York |
| 56 | Irving Lichter | 23 | Son | Bookkeeper | New York |
| 57 | William Lichter | 21 | Son | Mechanic | New York |
| 58 | Francis Lichter | 16 | Daughter | — | New York |
| 59 | Rose Pick | 51 | Head | — | Poland |
| 60 | Isadore Pick | 25 | Son | — | New York |
| 61 | Annette Pick | 21 | Daughter | Attendant | New York |
| 62 | Marvin Pick | 19 | Son | Usher | New York |
| 63 | Claude Pick | 17 | Daughter | New Worker | New York |
| 64 | John Pillen | 44 | Head | Truck Loader | New York |
| 65 | Katherine Pillen | 38 | Wife | — | New York |
| 66 | John Pillen | 15 | Son | — | New York |
| 67 | Francis Pillen | 12 | Son | — | New York |
| 68 | Kathleen Pillen | 7 | Daughter | — | New York |
| 69 | James Dawson | 45 | Head | Chauffeur | New York |
| 70 | Mary Dawson | 44 | Wife | — | New York |
| 71 | John Sheil | 31 | Head | Operator | England |
| 72 | Ethel Sheil | 26 | Wife | — | New York |
| 73 | John Jr. Sheil | 9 | Son | — | New York |
| 74 | Charles Sheil | 3 | Son | — | New York |
| 75 | William Sheil | 27 | Brother | Foreman | New York |
| 76 | William Pappert | 50 | Head | Salesman | New York |
| 77 | Mae Pappert | 51 | Wife | — | New York |
| 78 | June Pappert | 22 | Daughter | — | New York |
| 79 | Phair Pappert | 13 | Daughter | — | New York |
| 80 | Marilyn Pappert | 11 | Daughter | — | New York |
Pedigree Summary
Margaret
Gen 1 · 6 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)