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Grace Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lee-County, Iowa
Our Model Tree links this Grace Davis across the 1920, 1930 and 1940 US Censuses in Lee-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1889), then head of a 4-person household.
Age 51
b. ~1889
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lee-County, Iowa |
| Surname | Davis |
| Given Name | Grace |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Ft Madison |
| 1935 Residence (County) | Lee |
| Additional Details | |
| Highest Grade | H 1 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Ft Madison |
| Est. Birth Year | ~1889 |
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 Grace | Age | Birth yr |
|---|---|---|---|---|
| Frank Davis | Head | — | 52 | ~1888 |
| Gene Davis | Son | — | 26 | ~1914 |
| Martin Davis | Son | — | 23 | ~1917 |
| Grace Davis | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Lee, Iowa
Spouse, age 31
Lee, Iowa · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Grace B. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Missouri |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Lee, Iowa
Other, age 41
Lee, Iowa · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Grace |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 24 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Lee-County, Iowa
Spouse, age 51
Lee-County, Iowa · implied b. ~1889 — 4 household members
| Surname | Davis |
| Given Name | Grace |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Ft Madison |
| 1935 Residence (County) | Lee |
| Highest Grade | H 1 |
| 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 Grace Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Grace Davis
Spouse · 1940 · age 51 · b. ~1889 · Iowa
★ 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 — Lee-County, Iowa
Open full size
1940 US Federal Census — Lee-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01174-00811)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Bruce M Davis | 14 | Lodger | — | Iowa |
| 42 | Charles Salyars | 39 | Head | Baker | Iowa |
| 43 | Dona Salyars | 40 | Wife | — | Missouri |
| 44 | Ilene Salyars | 16 | Daughter | — | Iowa |
| 45 | Esther Salyars | 13 | Daughter | — | Iowa |
| 46 | Noah Miller | 20 | Lodger | Baker | Iowa |
| 47 | Darlene Miller | 17 | Lodger | — | South Dakota |
| 48 | William Stone | 75 | Head | — | Missouri |
| 49 | Laura Stone | 66 | Wife | — | Missouri |
| 50 | George Stone | 33 | Son | Machinist | Missouri |
| 51 | Donald Stone | 25 | Son | New Worker | Iowa |
| 52 | Virgil Dunn | 45 | Head | Railroad Clerk | Illinois |
| 53 | Carrie-Barbara Dunn | 48 | Wife | — | Iowa |
| 54 | Emil Coeur | 74 | Head | — | Illinois |
| 55 | Leona Coeur | 64 | Wife | — | Iowa |
| 56 | Frank Davis | 52 | Head | Inspector | Missouri |
| 57 | Grace Davis THIS PERSON | 51 | Wife | — | Iowa |
| 58 | Gene Davis | 26 | Son | Machinist | Iowa |
| 59 | Martin Davis | 23 | Son | — | Iowa |
| 60 | Bertha Auwaerter | 53 | Head | — | Iowa |
| 61 | Martha Auwaerter | 13 | Daughter | Stenographer | Iowa |
| 62 | Herbert Haessig | 32 | Head | Proprietor | Iowa |
| 63 | Charles Haessig | 27 | Brother | Attendant | Iowa |
| 64 | Ruth Lingenfelter | 30 | Sister | — | Iowa |
| 65 | Thomas Lingenfelter | 43 | Brother in law | Mail Carrier | Penn. |
| 66 | John Kroll | 56 | Head | Proprietor | Iowa |
| 67 | Lydia Kroll | 52 | Wife | — | Iowa |
| 68 | Mary Helling | 74 | Head | — | Iowa |
| 69 | Henry Helling | 47 | Son | Guard | Iowa |
| 70 | Dorothy Helling | 35 | Daughter | Waitress | Iowa |
| 71 | Vincent Weisbruch | 37 | Head | Proprietor | Iowa |
| 72 | Mila Weisbruch | 41 | Wife | Embalmer | Michigan |
| 73 | Stanley Weisbruch | 17 | Son | — | Iowa |
| 74 | Joan Weisbruch | 10 | Daughter | — | Iowa |
| 75 | Dona Merle Weisbruch | 7 | Daughter | — | Iowa |
| 76 | Mary Pieper | 11 | Lodger | — | Iowa |
| 77 | Elmer Wonder | 38 | Head | Mechanic | Oklahoma |
| 78 | Beryl Wonder | 32 | Wife | — | Iowa |
| 79 | Donald Wonder | 7 | Son | — | Iowa |
| 80 | Paul Woomack | 22 | Head | Wheeler | 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)