MC
Mary Chapman — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Mary Chapman across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a head (b.~1869), then head of a 2-person household.
Age 71
b. ~1869
Female
Head
Born: Ireland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Chapman |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Brooklyn |
| 1935 Residence (County) | Kings |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | New York |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | New York City |
| Est. Birth Year | ~1869 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Chapman | Head | — | 71 | ~1869 |
| John Chapman | Son | — | 41 | ~1899 |
Census Appearances
1920
New York, …
Head, age 57
New York, New York · implied b. ~1863 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chapman |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
New York, …
Head, age 64
New York, New York · implied b. ~1866 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chapman |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | Alien |
| Year of Immigration | 1868 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Helper |
| Industry | Office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 30 |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Kings-County, New …
Head, age 71
Kings-County, New York · implied b. ~1869 — 2 household members
| Surname | Chapman |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Brooklyn |
| 1935 Residence (County) | Kings |
| Naturalization Status | Naturalized |
| Highest Grade | 8 |
| 1935 Residence | New York |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Chapman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Chapman
Head · 1940 · age 71 · b. ~1869 · New York
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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-t0627-02571-00467)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Hugh J. Jr. Ruane | 31 | Son | Diesel | New York |
| 42 | Harry E. Pepper | 45 | Head | Inspector | New Jersey |
| 43 | Mary C. Pepper | 36 | Wife | Bookkeeper | Texas |
| 44 | Agnes Salome | 24 | Lodger | Stenographer | Texas |
| 45 | George Young | 46 | Head | Store Keeper | Pennsylvania |
| 46 | Catherine Young | 59 | Wife | — | Pennsylvania |
| 47 | Herbert Young | 26 | Son | Stock Clerk | Pennsylvania |
| 48 | George Young | 21 | Son | Salesman | Pennsylvania |
| 49 | James Sullivan | 52 | Head | Gardener | New York |
| 50 | Lilly Sullivan | 44 | Wife | — | New York |
| 51 | Florence Sullivan | 22 | Daughter | Salesgirl | New York |
| 52 | Patricia Sullivan | 15 | Daughter | — | New York |
| 53 | Jane Sullivan | 13 | Son | — | New York |
| 54 | Nellie O'Connell | 72 | Mother | — | Ireland |
| 55 | Louise L. Kelly | 61 | Head | — | Italy |
| 56 | Mary Chapman THIS PERSON | 71 | Head | — | Ireland |
| 57 | John Jr. Chapman | 41 | Son | Domestic | New York |
| 58 | James Collier | 70 | Head | Employe | New York |
| 59 | Winifred Collier | 47 | Wife | — | New York |
| 60 | Margaret Freil | 76 | Aunt | Pension | New York |
| 61 | Theodore Sr. Woodward | 37 | Head | Boiler Maker | S. Carolina |
| 62 | Dorothy Woodward | 35 | Wife | — | Augusta Ga. |
| 63 | Gloria Woodward | 13 | Daughter | — | Augusta Ga. |
| 64 | Theodore Jr. Woodward | 12 | Son | — | Augusta Ga. |
| 65 | Charles Woodward | 10 | Son | — | Augusta Ga. |
| 66 | Torel Rydberg | 49 | Head | Iron Worker | Norway |
| 67 | Amelia Rydberg | 53 | Wife | — | Norway |
| 68 | Solveig Rydberg | 22 | Daughter | Tax Clerk | New York |
| 69 | Max Rydberg | 18 | Son | Messenger | New York |
| 70 | Theodore Rydberg | 14 | Son | — | New York |
| 71 | Arthur R. Mctahie | 60 | Head | Retail Tea & Cof | New York |
| 72 | Mary C. Mctahie | 58 | Wife | — | New York |
| 73 | Florence C. Mctahie | 33 | Daughter | Saleslady | New York |
| 74 | Irvin Rogers | 21 | Head | Clerical | New Jersey |
| 75 | Audrey Rogers | 26 | Wife | Clerical | New York |
| 76 | Thomas J. Gallagher | 56 | Head | Inspector | Ireland |
| 77 | Delia Gallagher | 59 | Wife | — | Ireland |
| 78 | Mary Gallagher | 23 | Daughter | Secretary | New York |
| 79 | Helen Gallagher | 22 | Daughter | Bookkeeper | New York |
| 80 | Thomas Gallagher | 19 | Son | — | New York |
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)