MR
Mary Robertson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Nassau-County, New York
Our Model Tree links this Mary Robertson across the 1930 and 1940 US Censuses in Nassau-County, New York (XGBoost, ~Confirmed) — first a spouse (b.~1909), then head of a 8-person household.
Age 31
b. ~1909
Female
Spouse
Born: Germany
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Nassau-County, New York |
| Surname | Robertson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | Carle Place |
| 1935 Residence (County) | Nassau |
| Naturalization Status | Naturalized |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
| Township / Ward | Carle Place |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Shirley Robertson | Daughter | — | 2 | ~1938 |
| Lillian Robertson | Daughter | — | 12 | ~1928 |
| Cyril Robertson | Head | — | 31 | ~1909 |
| Cyril Robertson | Son | — | 9 | ~1931 |
| Robert Robertson | Son | — | 6 | ~1934 |
| Donald Robertson | Son | — | ~1940 | |
| George Robertson | Son | — | 10 | ~1930 |
| Mary Robertson | Spouse | — | 31 | ~1909 |
Census Appearances
1930
Nassau, New …
Spouse, age 21
Nassau, New York · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robertson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Germany |
| Naturalization Status | Alien |
| Year of Immigration | 1914 |
| Age at First Marriage | 18 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Housewife |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
1940
Nassau-County, New …
Spouse, age 31
Nassau-County, New York · implied b. ~1909 — 8 household members
| Surname | Robertson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | Carle Place |
| 1935 Residence (County) | Nassau |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
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 Robertson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Robertson
Spouse · 1940 · age 31 · b. ~1909 · 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 — Nassau-County, New York
Open full size
1940 US Federal Census — Nassau-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02692-00258)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Michael Congo | 20 | Son | Clerk | New York |
| 2 | James Congo | 18 | Son | New Worker | New York |
| 3 | Irene Congo | 14 | Daughter | — | New York |
| 4 | James Mcguire | 42 | Head | Electric Gang Leader | Scotland |
| 5 | Mary Mcguire | 37 | Wife | — | New York |
| 6 | Kathleen Mcguire | 15 | Daughter | — | New York |
| 7 | Louis Schultz | 53 | Head | Laborer | Poland |
| 8 | Nellie Schultz | 46 | Wife | — | Poland |
| 9 | Lottie Schultz | 21 | Daughter | Dressmaker | New York |
| 10 | Wanda Schultz | 19 | Daughter | Dressmaker | New York |
| 11 | Andrew Schultz | 16 | Son | — | New York |
| 12 | Walter Schultz | 12 | Son | — | New York |
| 13 | Victor Schultz | 7 | Son | — | New York |
| 14 | James Marchesano | 31 | Head | Bartender | New York |
| 15 | Adele Marchesano | 25 | Wife | — | Pennsylvania |
| 16 | John Calarco | 48 | Head | Gateman | Italy |
| 17 | Palmena Calarco | 41 | Wife | — | Italy |
| 18 | Fortunato Barillo | 47 | Head | Gateman | Italy |
| 19 | Mary Barillo | 40 | Wife | — | Italy |
| 20 | Patsy Barillo | 17 | Son | — | New Jersey |
| 21 | Dominick Barillo | 16 | Son | — | New Jersey |
| 22 | Frances Barillo | 14 | Daughter | — | New Jersey |
| 23 | Grace Barillo | 10 | Daughter | — | New York |
| 24 | Salvatore Barillo | 7 | Son | — | New York |
| 25 | Dominick Calarco | 90 | Father-in-law | Laborer | Italy |
| 26 | Walter Heikila | 30 | Head | Attendant | Massachusetts |
| 27 | Mary Heikila | 22 | Wife | — | Massachusetts |
| 28 | Bruce Heikila | 4 | Son | — | Massachusetts |
| 29 | Joan Heikila | 3 | Daughter | — | Massachusetts |
| 30 | Donald Heikila | 2 | Son | — | New York |
| 31 | Cyril Robertson | 31 | Head | Truck Driver | New York |
| 32 | Mary Robertson THIS PERSON | 31 | Wife | — | Germany |
| 33 | Lillian Robertson | 12 | Daughter | — | New York |
| 34 | George Robertson | 10 | Son | — | New York |
| 35 | Cyril Jr Robertson | 9 | Son | — | New York |
| 36 | Robert Robertson | 6 | Son | — | New York |
| 37 | Shirley Robertson | 2 | Daughter | — | New York |
| 38 | Donald Robertson | 0 | Son | — | New York |
| 39 | Clara Platon | 42 | Head | Housework | New York |
| 40 | Jeannette Platon | 18 | 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)