MW
Mary Waters — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Mary Waters across the 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1914), then head of a 8-person household.
Age 26
b. ~1914
Female
Daughter
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Waters |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Commercial Banking |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 930 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Stenographer |
| Township / Ward | Brooklyn |
| Est. Birth Year | ~1914 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Helen Waters | Daughter | — | 29 | ~1911 |
| Margaret Waters | Daughter | — | 25 | ~1915 |
| Mary Waters | Daughter | — | 26 | ~1914 |
| Alice Waters | Daughter | — | 35 | ~1905 |
| John Waters | Head | — | 60 | ~1880 |
| Joseph Waters | Son | — | 20 | ~1920 |
| Hugh Waters | Son | — | 34 | ~1906 |
| Frances Waters | Son | — | 23 | ~1917 |
Census Appearances
1930
Kings, New …
Other, age 19
Kings, New York · implied b. ~1911 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Waters |
| Given Name | Mary |
| Relationship to Head | Sister |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Stenographer |
| Industry | Legal |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Daughter, age 26
Kings-County, New York · implied b. ~1914 — 8 household members
| Surname | Waters |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn |
| 1935 Residence (County) | Kings |
| Occupation | Stenographer |
| Industry | Commercial Banking |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 930 |
| Highest Grade | H 2 |
| 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 Mary Waters across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Waters
Daughter · 1940 · age 26 · b. ~1914 · New York
★ You are viewing this record
Sibling
Alice Waters
Sibling · 1940 · age 35
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Waters
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Waters
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hugh Waters
Sibling · 1940 · age 34
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Waters
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Waters
Sibling · 1940 · age 23
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-t0627-02572-00653)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jay Pedersen | 6 | — | — | Norway |
| 2 | Torvald Jacobsen | 34 | Lodger | Carpenter | Norway |
| 3 | George Price | 36 | Head | Electrician | New York |
| 4 | Jeanne Price | 29 | Wife | — | New York |
| 5 | Donna Price | 9 | Daughter | — | New York |
| 6 | Betty Price | 1 | Daughter | — | New York |
| 7 | Gladys Cooley | 48 | Head | — | Texas |
| 8 | Raymond Cooley | 52 | Husband | Bookkeeper | Missouri |
| 9 | Aladdin Cooley | 25 | Son | Office Manager | New Jersey |
| 10 | Mildred Cooley | 20 | Daughter in law | Mail Clerk | Massachusetts |
| 11 | Joseph Medauer | 36 | Head | Machinist | Austria |
| 12 | Florence Medauer | 36 | Wife | — | New York |
| 13 | John Waters | 60 | Head | Train Examiner | Eire |
| 14 | Alice Waters | 35 | Daughter | Cashier | New York |
| 15 | Hugh Waters | 34 | Son | Order Clerk | New York |
| 16 | Helen Waters | 29 | Daughter | — | New York |
| 17 | Mary Waters THIS PERSON | 26 | Daughter | Stenographer | New York |
| 18 | Margaret Waters | 25 | Daughter | Clerk | New York |
| 19 | Frances Waters | 23 | Son | Clerk | New York |
| 20 | Joseph Waters | 20 | Son | New Worker | New York |
| 21 | Charles Johansen | 47 | Head | Electrician | Norway |
| 22 | Dora Johansen | 39 | Wife | — | Norway |
| 23 | Ruth Johansen | 28 | Daughter | Beautician | Norway |
| 24 | Mary Russell | 60 | Head | — | Germany |
| 25 | Elizabeth Russell | 21 | Daughter | Clerk | New York |
| 26 | Howard Johnson | 27 | Son in law | Order Clerk | New York |
| 27 | Josephine Johnson | 25 | Daughter | — | New York |
| 28 | Joan Johnson | 3 | Grand daughter | — | New York |
| 29 | John D Kiefer | 47 | Head | Pressman | New York |
| 30 | Mary E Kiefer | 44 | Wife | — | New York |
| 31 | Eileen Kiefer | 20 | Daughter | New Worker | New York |
| 32 | John Jr Kiefer | 17 | Son | New Worker | New York |
| 33 | Ralph Mower | 23 | Son in law | Out Of Work | New York |
| 34 | Alice Oares | 48 | Head | Assistant Manager | New Jersey |
| 35 | John Oares | 24 | Son | Chauffeur | New Jersey |
| 36 | Mildred Oares | 19 | Daughter in law | — | New York |
| 37 | Margaret Oares | 0 | Grand daughter | — | New York |
| 38 | Victor Johnson | 53 | Head | Carpenter | Finland |
| 39 | Gloria Johnson | 17 | Daughter | — | New York |
| 40 | Hildur Johnson | 14 | Daughter | — | 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)