MS
Mary Schwartz — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Denver-County, Colorado
Our Model Tree links this Mary Schwartz across the 1920, 1930 and 1940 US Censuses in Denver-County, Colorado (XGBoost, ~Confirmed) — first a spouse (b.~1893), then head of a 4-person household.
Age 47
b. ~1893
Female
Spouse
Born: Russia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Denver-County, Colorado |
| Surname | Schwartz |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Russia |
| 1935 Residence (City) | Denver City |
| 1935 Residence (County) | Denver |
| Naturalization Status | Alien |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth Country | Russia |
| Birthplace (normalized) | russia |
| Township / Ward | Denver City |
| Est. Birth Year | ~1893 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Schwartz | Spouse | — | 47 | ~1893 |
| Stanley Schwartz | Son | — | 13 | ~1927 |
| Katherine Schwartz | Head | — | 62 | ~1878 |
| Carl Schwartz | Son | — | 36 | ~1904 |
Census Appearances
1920
Denver, Colorado
Spouse, age 24
Denver, Colorado · implied b. ~1896 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schwartz |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Russia |
| Year of Immigration | 1907 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth Country | Russia |
| Birthplace (normalized) | russia |
1930
Denver, Colorado
Spouse, age 35
Denver, Colorado · implied b. ~1895 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schwartz |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Russia |
| Naturalization Status | Naturalized |
| Age at First Marriage | 21 |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Can Read/Write | Yes |
| Mother Tongue | Unknown |
| Birth Country | Russia |
| Birthplace (normalized) | russia |
1940
Denver-County, Colorado
Spouse, age 47
Denver-County, Colorado · implied b. ~1893 — 4 household members
| Surname | Schwartz |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Russia |
| 1935 Residence (City) | Denver City |
| 1935 Residence (County) | Denver |
| Naturalization Status | Alien |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth Country | Russia |
| Birthplace (normalized) | russia |
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 Schwartz 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 Schwartz
Spouse · 1940 · age 47 · b. ~1893 · Colorado
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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 — Denver-County, Colorado
Open full size
1940 US Federal Census — Denver-County, Colorado
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-00485-00370)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lillian O. Smyth | 24 | Wife | — | Missouri |
| 2 | Roberta Lee Smyth | 1 | Daughter | — | Missouri |
| 3 | George Whitaker | 52 | Head | Baker | Kansas |
| 4 | Fay O. Whitaker | 31 | Wife | — | Kansas |
| 5 | Pauline Whitaker | 9 | Daughter | — | Kansas |
| 6 | Delores Whitaker | 6 | Daughter | — | Kansas |
| 7 | Beverly Whitaker | 3 | Daughter | — | Kansas |
| 8 | Mary Stutzman | 74 | Head | — | Iowa |
| 9 | Paul Stutzman | 28 | Grandson | Operator | Colorado |
| 10 | Ezekiel Salazar | 37 | Head | Truck Driver | Colorado |
| 11 | Maclova Salazar | 40 | Wife | — | Colorado |
| 12 | Josephine Salazar | 12 | Daughter | — | Colorado |
| 13 | Carolina Salazar | 10 | Daughter | — | Colorado |
| 14 | Julius Sanchez | 41 | Head | Laborer | Colorado |
| 15 | Elvira Sanchez | 29 | Wife | — | Colorado |
| 16 | Dorothy Sanchez | 3 | Daughter | — | Colorado |
| 17 | John Robert Sanchez | 1 | Son | — | Colorado |
| 18 | Barbara Lee Sanchez | 0 | Daughter | — | Colorado |
| 20 | Ross Ericson | 54 | Head | Operator | Iowa |
| 21 | Leta R. Ericson | 42 | Wife | Asst. | Illinois |
| 23 | May Cooper | 24 | Head | House Carrier | Iowa |
| 24 | Faymie Cooper | 29 | Wife | — | Colorado |
| 25 | Blumendahl | 65 | Head | — | Russia |
| 26 | Ida Blumendahl | 62 | Wife | — | Russia |
| 27 | Harry Blumendahl | 32 | Son | Salesman | Connecticut |
| 28 | Katherine Schwartz | 62 | Head | Real Estate | Russia |
| 29 | Mary Schwartz THIS PERSON | 47 | Wife | — | Russia |
| 30 | Stanley Schwartz | 13 | Son | — | Colorado |
| 31 | Carl W. Schwartz | 36 | Son | Salesman | Colorado |
| 32 | Harold Buckhalter | 30 | Head | Salesman | Colorado |
| 33 | Bess Buckhalter | 30 | Wife | — | Colorado |
| 34 | Lois Mae Buckhalter | 4 | Daughter | — | New York |
| 35 | Flora Jack | 16 | Ward | House Keeper | Colorado |
| 37 | Joe Chamis | 43 | Head | Parking Lot | Russia |
| 38 | Maurine Chamis | 35 | Wife | — | Missouri |
| 39 | Jacqueline Chamis | 3 | Daughter | — | Missouri |
| 40 | Ben Marylander | 32 | Head | Salesman | Colorado |
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)