ED
Emma Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Emma Davis across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1887), then head of a 3-person household.
Age 53
b. ~1887
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Davis |
| Given Name | Emma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Industry | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1887 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Emma | Age | Birth yr |
|---|---|---|---|---|
| Jewell Davis | Daughter | — | 26 | ~1914 |
| Carl Davis | Head | — | 49 | ~1891 |
| Emma Davis | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Polk, Iowa
Spouse, age 32
Polk, Iowa · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Emma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Spouse, age 42
Polk, Iowa · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Emma S |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 25 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Spouse, age 53
Polk-County, Iowa · implied b. ~1887 — 3 household members
| Surname | Davis |
| Given Name | Emma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Industry | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Davis 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 Davis
Spouse · 1940 · age 53 · b. ~1887 · Iowa
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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 — Polk-County, Iowa
Open full size
1940 US Federal Census — Polk-County, Iowa
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01197-00123)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | George E. Townsend | 26 | Head | Carpenter | Iowa |
| 42 | Evelyn Townsend | 24 | Wife | — | Iowa |
| 44 | Leroy C. Irwin | 56 | Head | Weaver | Canada Eng. |
| 45 | Georgia M. Irwin | 30 | Wife | — | Iowa |
| 46 | Albert A. Losee | 29 | Head | Laborer | Iowa |
| 47 | Beulah F. Losee | 26 | Wife | — | Iowa |
| 48 | Albert D. Losee | 0 | Son | — | Iowa |
| 49 | William H. Holton | 70 | Father-in-law | — | Indiana |
| 50 | Sadie E. Holton | 61 | Mother-in-law | — | Iowa |
| 51 | Orville C. King | 42 | Head | Warehouseman | Iowa |
| 52 | Elsie B. King | 37 | Wife | — | South Dakota |
| 53 | Floriene R. King | 12 | Daughter | — | Minnesota |
| 54 | Orville C. King | 10 | Son | — | Iowa |
| 55 | Maryemma King | 8 | Daughter | — | Iowa |
| 56 | Cora Hodge | 65 | Head | Sales Lady | Missouri |
| 57 | Carl D. Davis | 49 | Head | Upholsterer | Missouri |
| 58 | Emma Davis THIS PERSON | 53 | Wife | — | Iowa |
| 59 | Jewell E. Davis | 26 | Daughter | Elevator Operator | Iowa |
| 60 | Douglas C. Davis | 23 | Head | Driver-Truck Grocery Delivery | Iowa |
| 61 | Helen Davis | 22 | Wife | — | Iowa |
| 62 | Mabel L. Crawford | 37 | Head | Mgr School Lunch Room | Iowa |
| 63 | Phyllis A. Crawford | 16 | Daughter | Cashier School Lunch | Iowa |
| 64 | Robert Horsburgh | 74 | Head | Landscaping | Scotland |
| 65 | Daisy Horsburgh | 58 | Wife | — | Scotland |
| 66 | Ellen T. Curran | 54 | Head | — | Iowa |
| 67 | Mary J. Curran | 23 | Daughter | Janitorial | Iowa |
| 68 | Neal S. Stilwell | 30 | Head | Oil Station Tender | Iowa |
| 69 | Cyrene Stilwell | 27 | Wife | Clerical | Iowa |
| 70 | Mira Stilwell | 2 | Daughter | — | Iowa |
| 71 | Ray E. Fack | 37 | Head | Automobile Laborer | Iowa |
| 72 | Esther Fack | 29 | Wife | — | Iowa |
| 73 | Phyllis J. Fack | 8 | Daughter | — | Iowa |
| 74 | Ray E. Fack | 7 | Son | — | Iowa |
| 75 | Arie N. Fack | 5 | Son | — | Iowa |
| 76 | John W. Calhoun | 22 | Head | Waiter | Kansas |
| 77 | Dorothy Calhoun | 27 | Wife | — | Iowa |
| 78 | Larry Jr. Davis | 10 | Stepson | — | Iowa |
| 79 | Harold E. Woods | 29 | Head | Baker | Iowa |
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)