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Mary Morgan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Lawrence-County, New York
Our Model Tree links this Mary Morgan across the 1920, 1930 and 1940 US Censuses in St.-Lawrence-County, New York (XGBoost, ~Confirmed) — first a spouse (b.~1890), then head of a 10-person household.
Age 50
b. ~1890
Female
Spouse
Born: Kansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Lawrence-County, New York |
| Surname | Morgan |
| Given Name | Mary D |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Potsdam Town |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Township / Ward | Potsdam Town |
| Est. Birth Year | ~1890 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Marie Morgan | Daughter | — | 18 | ~1922 |
| Martha Morgan | Daughter | — | 8 | ~1932 |
| Alice Morgan | Daughter | — | 17 | ~1923 |
| Margaret Morgan | Daughter | — | 16 | ~1924 |
| John Morgan | Head | — | 53 | ~1887 |
| Joseph Morgan | Son | — | 19 | ~1921 |
| Robert Morgan | Son | — | 10 | ~1930 |
| James Morgan | Son | — | 21 | ~1919 |
| Donald Morgan | Son | — | 5 | ~1935 |
| Mary Morgan | Spouse | — | 50 | ~1890 |
Census Appearances
1920
St Lawrence, …
Spouse, age 29
St Lawrence, New York · implied b. ~1891 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Morgan |
| Given Name | Mary J. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Kansas |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
St Lawrence, …
Spouse, age 39
St Lawrence, New York · implied b. ~1891 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Morgan |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Kansas |
| Age at First Marriage | 26 |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
St.-Lawrence-County, New …
Spouse, age 50
St.-Lawrence-County, New York · implied b. ~1890 — 10 household members
| Surname | Morgan |
| Given Name | Mary D |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Potsdam Town |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Morgan 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 Morgan
Spouse · 1940 · age 50 · b. ~1890 · 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 — St.-Lawrence-County, New York
Open full size
1940 US Federal Census — St.-Lawrence-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02771-00557)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John J Morgan | 53 | Head | Farmer | New York |
| 2 | Mary D Morgan THIS PERSON | 50 | Wife | — | Kansas |
| 3 | James M Morgan | 21 | Son | — | New York |
| 4 | Joseph T Morgan | 19 | Son | Laborer | New York |
| 5 | Marie J Morgan | 18 | Daughter | — | New York |
| 6 | Alice E Morgan | 17 | Daughter | — | New York |
| 7 | Margaret A Morgan | 16 | Daughter | — | New York |
| 8 | Robert J Morgan | 10 | Son | — | New York |
| 9 | Martha M Morgan | 8 | Daughter | — | New York |
| 10 | Donald M Morgan | 5 | Son | — | New York |
| 11 | Jay H Morgan | 51 | Head | Farmer | New York |
| 12 | Grace E Morgan | 50 | Wife | — | New York |
| 13 | Virginia M Morgan | 22 | Daughter | School Teacher | New York |
| 14 | Eleanor L Morgan | 21 | Daughter | — | New York |
| 15 | James F Morgan | 18 | Son | — | New York |
| 16 | Mary C Morgan | 14 | Daughter | — | New York |
| 17 | John J Morgan | 10 | Son | — | New York |
| 18 | Anne E Morgan | 8 | Daughter | — | New York |
| 19 | Jay Curry | 35 | Head | Farmer | New York |
| 20 | Bernice L Curry | 33 | Wife | — | New York |
| 21 | James Curry | 2 | Son | — | New York |
| 22 | Donald B Curry | 1 | Son | — | New York |
| 23 | Ella A Sullivan | 72 | Head | Farmer | New York |
| 24 | Stanley Wolfe | 53 | Hired man | Hired Man | New York |
| 25 | Edgar Castle | 31 | Hired man | Hired Man | New York |
| 26 | Ebenezer P Mott | 59 | Head | Farmer | New York |
| 27 | Ruth E Mott | 49 | Wife | — | New York |
| 28 | George E Mott | 19 | Son | Laborer | New York |
| 29 | Freda J Mott | 16 | Daughter | — | New York |
| 30 | Mary E Mott | 14 | Daughter | — | New York |
| 31 | Morris G Mott | 10 | Son | — | New York |
| 32 | Jay V Colburn | 68 | Head | Farmer | Canada |
| 33 | Anna E Colburn | 61 | Daughter | — | New York |
| 34 | Gerald S Colburn | 30 | Son | Laborer | New York |
| 35 | Leo H Colburn | 23 | Son | Propeller | New York |
| 36 | Mary A Denon | 77 | Head | Farmer | New York |
| 37 | Veronica Denon | 42 | Daughter | School Teacher | New York |
| 38 | Floyd Richards | 27 | Hired man | Hired Man | New York |
| 39 | Hannah Adams | 64 | Head | Farmer | New York |
| 40 | Harold B Adams | 31 | Son | Laborer | 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)