MF
Mary Ferguson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Mary Ferguson across the 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1919), then head of a 12-person household.
Age 21
b. ~1919
Female
Daughter
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Ferguson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | KINGS |
| Additional Details | |
| Occupation | Secretary |
| Industry | Medical Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 286 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Secretary |
| Township / Ward | New York City |
| Est. Birth Year | ~1919 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Isabel Ferguson | Daughter | — | 25 | ~1915 |
| Grace Ferguson | Daughter | — | 23 | ~1917 |
| Mary Ferguson | Daughter | — | 21 | ~1919 |
| Dorothy Ferguson | Daughter | — | 19 | ~1921 |
| Ruth Ferguson | Daughter | — | 17 | ~1923 |
| Tessie Ferguson | Daughter | — | 15 | ~1925 |
| Jane Ferguson | Daughter | — | 11 | ~1929 |
| Robert Ferguson | Head | — | 53 | ~1887 |
| Daniel O'Connell | Other | — | 82 | ~1858 |
| Donald Ferguson | Son | — | 10 | ~1930 |
| Robert Ferguson | Son | — | 13 | ~1927 |
| Beatrice Ferguson | Spouse | — | 52 | ~1888 |
Census Appearances
1930
Kings, New …
Daughter, age 12
Kings, New York · implied b. ~1918 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ferguson |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| 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
Kings-County, New …
Daughter, age 21
Kings-County, New York · implied b. ~1919 — 12 household members
| Surname | Ferguson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | KINGS |
| Occupation | Secretary |
| Industry | Medical Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 286 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| 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 Mary Ferguson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Ferguson
Daughter · 1940 · age 21 · b. ~1919 · New York
★ You are viewing this record
Sibling
Robert Ferguson
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Ferguson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Ferguson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Tessie Ferguson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Ferguson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Ferguson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Ferguson
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Isabel Ferguson
Sibling · 1940 · age 25
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 — 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-t0627-02558-00610)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Reilly | 27 | Head | Installer | New York |
| 2 | Isabel Reilly | 26 | Wife | — | New York |
| 3 | Charles Jr. Reilly | 4 | Son | — | New York |
| 4 | Edward J. Canning | 20 | Head | Bookkeeper | New York |
| 5 | Helen Canning | 18 | Wife | — | New York |
| 6 | Anna Russell | 25 | Sis-in-law | Cashier | New York |
| 7 | Kenneth Riegler | 40 | Head | Phone Maintainer | New York |
| 8 | Sylvester Riegler | 38 | Brother | — | New York |
| 9 | John Nally | 43 | Head | Watchman | Eire |
| 10 | Catherine Nally | 39 | Wife | — | Eire |
| 11 | Helen Nally | 13 | Daughter | — | New York |
| 12 | Thomas Connelly | 30 | Head | Signal Man | New York |
| 13 | Isabel Connelly | 29 | Wife | — | New York |
| 14 | John Connelly | 9 | Son | — | New York |
| 15 | Dennis Connelly | 2 | Son | — | New York |
| 16 | Robert Ferguson | 53 | Head | Chauffeur | New York |
| 17 | Beatrice Ferguson | 52 | Wife | — | New York |
| 18 | Isabel Ferguson | 25 | Daughter | Sales Girl | New York |
| 19 | Grace Ferguson | 23 | Daughter | Operator | New York |
| 20 | Mary Ferguson THIS PERSON | 21 | Daughter | Secretary | New York |
| 21 | Dorothy Ferguson | 19 | Daughter | Laborer | New York |
| 22 | Ruth Ferguson | 17 | Daughter | — | New York |
| 23 | Tessie Ferguson | 15 | Daughter | — | New York |
| 24 | Robert Jr. Ferguson | 13 | Son | — | New York |
| 25 | Jane Ferguson | 11 | Daughter | — | New York |
| 26 | Donald Ferguson | 10 | Son | — | New York |
| 27 | Daniel O'Connell | 82 | Father-in-law | — | New York |
| 28 | James Murphy | 42 | Head | Auto Mechanic | New York |
| 29 | Janet Murphy | 39 | Wife | — | New York |
| 30 | James Murphy | 10 | Son | — | New York |
| 31 | Jean M. Murphy | 6 | Daughter | — | New York |
| 32 | John Zwosta | 47 | Head | — | New York |
| 33 | Mary Zwosta | 50 | Wife | — | New York |
| 34 | John Zwosta | 25 | Son | Inspector Treasurer | New York |
| 35 | James White | 45 | Head | Repairman | Scotland |
| 36 | Margaret White | 42 | Wife | — | Eire |
| 37 | Jessie White | 13 | Daughter | — | New York |
| 38 | Mary A. White | 11 | Daughter | — | New York |
| 39 | Margaret C. White | 7 | Daughter | — | New York |
| 40 | James H. White | 4 | Son | — | New York |
Related Census Records
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)