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Emma Wagner — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Boulder-County, Colorado
Our Model Tree links this Emma Wagner across the 1920, 1930 and 1940 US Censuses in Boulder-County, Colorado (XGBoost, ~Confirmed) — first a spouse (b.~1893), then head of a 4-person household.
Age 47
b. ~1893
Female
Spouse
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Boulder-County, Colorado |
| Surname | Wagner |
| Given Name | Emma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Election precinct 9, Lafayette |
| 1935 Residence (County) | Boulder |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Township / Ward | Election Precinct 9 Lafayette |
| 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 Emma | Age | Birth yr |
|---|---|---|---|---|
| Emma Wagner | Spouse | — | 47 | ~1893 |
| J Wagner | Head | — | 52 | ~1888 |
| Wilma Wagner | Daughter | — | 10 | ~1930 |
| Earl Wagner | Son | — | 35 | ~1905 |
Census Appearances
1920
Boulder, Colorado
Spouse, age 26
Boulder, Colorado · implied b. ~1894 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wagner |
| Given Name | Emily |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Colorado |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Boulder, Colorado
Other, age 37
Boulder, Colorado · implied b. ~1893 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wagner |
| Given Name | Emily |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Colorado |
| Age at First Marriage | 21 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Boulder-County, Colorado
Spouse, age 47
Boulder-County, Colorado · implied b. ~1893 — 4 household members
| Surname | Wagner |
| Given Name | Emma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Election precinct 9, Lafayette |
| 1935 Residence (County) | Boulder |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 Emma Wagner across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Emma Wagner
Spouse · 1940 · age 47 · b. ~1893 · Colorado
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Boulder-County, Colorado
Open full size
1940 US Federal Census — Boulder-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00457-00180)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Tony Fernandez | 17 | Son | New Worker | New Mexico |
| 2 | Mary Fernandez | 15 | Daughter | — | Colorado |
| 3 | Alicia Jo Fernandez | 9 | Daughter | — | Colorado |
| 4 | Frances Fernandez | 7 | Daughter | — | Colorado |
| 5 | Joe Medrano | 50 | Head | Miner | Texas |
| 6 | Louie Naranjo | 28 | Lodger | — | New Mexico |
| 7 | Lloyd Naranjo | 8 | Lodger | — | Colorado |
| 8 | Mabel Naranjo | 5 | Lodger | — | Colorado |
| 9 | George Brown | 44 | Head | Miner | Colorado |
| 10 | Beatrice Brown | 36 | Wife | — | Illinois |
| 11 | George Brown | 19 | Son | Patrolman | Colorado |
| 12 | Alice Brown | 12 | Daughter | — | Colorado |
| 13 | John R Green | 29 | Head | Miner | Colorado |
| 14 | Elizabeth Green | 24 | Wife | — | Colorado |
| 15 | Patty Jean Green | 3 | Daughter | — | Colorado |
| 16 | J Fritz Cerne | 25 | Brother-in-law | Eng. Assist. | Colorado |
| 17 | Singo Archuleta | 55 | Head | Laborer | Colorado |
| 18 | Jannie Archuleta | 21 | Wife | — | New Mexico |
| 19 | Freda Archuleta | 2 | Daughter | — | Colorado |
| 20 | Roger Archuleta | 1 | Son | — | Colorado |
| 21 | J. S. Wagner | 52 | Head | Laborer | Colorado |
| 22 | Emma Wagner THIS PERSON | 47 | Wife | — | Colorado |
| 23 | Earl Wagner | 35 | Son | New Worker | Colorado |
| 24 | Wilma Wagner | 10 | Daughter | — | Colorado |
| 25 | Ruben Martinez | 36 | Head | Miner | New Mexico |
| 26 | Mary Martinez | 30 | Wife | — | Mexico |
| 27 | Elaine Martinez | 4 | Daughter | — | Colorado |
| 28 | Joe E Martinez | 26 | Head | Laborer | Colorado |
| 29 | Geraldine Martinez | 18 | Wife | — | Colorado |
| 30 | Ruben Martinez | 2 | Son | — | Colorado |
| 31 | Frank Rosales | 39 | Head | Laborer | Mexico |
| 32 | Mary Rosales | 46 | Wife | — | Mexico |
| 33 | Frances Rosales | 21 | Daughter | New Worker | Colorado |
| 34 | Annie Rosales | 19 | Daughter | New Worker | Colorado |
| 35 | Jenny Rosales | 16 | Son | — | Colorado |
| 36 | Tom Rosales | 15 | Son | — | Colorado |
| 37 | Manual Rosales | 15 | Son | — | Colorado |
| 38 | Joe Corago | 43 | Head | Laborer | Colorado |
| 39 | Ophelia Corago | 41 | Wife | — | Colorado |
| 40 | Clifford Corago | 17 | Son | Laborer | 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)