MD
May Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Harrison-County, Iowa
Our Model Tree links this May Davis across the 1920, 1930 and 1940 US Censuses in Harrison-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1878), then head of a 4-person household.
Age 62
b. ~1878
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Harrison-County, Iowa |
| Surname | Davis |
| Given Name | May |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Clay twp |
| 1935 Residence (County) | Harrison |
| Additional Details | |
| Occupation | Housewife |
| Industry | Farm |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Housewife |
| Township / Ward | Clay Twp |
| Est. Birth Year | ~1878 |
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 May | Age | Birth yr |
|---|---|---|---|---|
| Tom Davis | Head | — | 77 | ~1863 |
| Raymond Davis | Son | — | 24 | ~1916 |
| George Davis | Son | — | 31 | ~1909 |
| May Davis | Spouse | — | 62 | ~1878 |
Census Appearances
1920
Harrison, Iowa
Spouse, age 42
Harrison, Iowa · implied b. ~1878 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | May |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Harrison, Iowa
Other, age 52
Harrison, Iowa · implied b. ~1878 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | May |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 19 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Harrison-County, Iowa
Spouse, age 62
Harrison-County, Iowa · implied b. ~1878 — 4 household members
| Surname | Davis |
| Given Name | May |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Clay twp |
| 1935 Residence (County) | Harrison |
| Occupation | Housewife |
| Industry | Farm |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 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 May 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
May Davis
Spouse · 1940 · age 62 · b. ~1878 · 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 — Harrison-County, Iowa
Open full size
1940 US Federal Census — Harrison-County, Iowa
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01166-00134)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | M. F. Jahner | 52 | Head | Farmer | Iowa |
| 2 | Ellen Jahner | 43 | Wife | Housewife | Iowa |
| 3 | Helen Jahner | 20 | Daughter | — | Iowa |
| 4 | Hugh Jahner | 17 | Son | — | Iowa |
| 5 | Frank Jahner | 14 | Son | — | California |
| 6 | Tom Davis | 77 | Head | Farmer | Iowa |
| 7 | May Davis THIS PERSON | 62 | Wife | Housewife | Iowa |
| 8 | George Davis | 31 | Son | Laborer | Iowa |
| 9 | Raymond Davis | 24 | Son | Farmhand | Iowa |
| 10 | Carl Marshall | 38 | Head | Farmer | Kansas |
| 11 | Florence Marshall | 33 | Wife | Housewife | Iowa |
| 12 | Harold Marshall | 6 | Son | — | Iowa |
| 13 | Howard Marshall | 2 | Son | — | Iowa |
| 14 | Mary Marshall | 0 | Daughter | — | Iowa |
| 15 | Charles H. Stewart | 42 | Head | Welder | Iowa |
| 16 | Grace Stewart | 41 | Wife | Housewife | Iowa |
| 17 | Charles E. Stewart | 19 | Son | Farmhand | Iowa |
| 18 | Leo Stewart | 14 | Son | — | Iowa |
| 19 | Thomas Stewart | 11 | Son | — | Iowa |
| 20 | Donald Stewart | 4 | Son | — | Iowa |
| 21 | Nels Hansen | 52 | Head | Farmer | Iowa |
| 22 | Mable Brent | 37 | Niece | Housekeeper | Iowa |
| 23 | James Hansen | 14 | Nephew | — | Illinois |
| 24 | Robert Hansen | 13 | Nephew | — | Iowa |
| 25 | Donald Hansen | 3 | Nephew | — | Iowa |
| 26 | Roy Baker | 52 | Head | Farmer | Kansas |
| 27 | Mabel Baker | 44 | Wife | Housewife | Iowa |
| 28 | Harold Baker | 20 | Son | Farmhand | Nebraska |
| 29 | Eileen Baker | 16 | Daughter | — | Nebraska |
| 30 | Arlo Baker | 12 | Son | — | Iowa |
| 31 | Lois Baker | 8 | Daughter | — | Iowa |
| 32 | Phyllis Baker | 1 | Daughter | — | Iowa |
| 33 | Edwin Mcferrin | 26 | Head | Farmer | Iowa |
| 34 | Helen Mcferrin | 27 | Wife | Housewife | Norway |
| 35 | Edwin Mcferrin | 2 | Son | — | Iowa |
| 36 | William Mcferrin | 0 | Son | — | Iowa |
| 37 | W. A. Mcqueen | 52 | Head | Farmer | Iowa |
| 38 | Stella Mcqueen | 48 | Wife | Housewife | Iowa |
| 39 | William Mcqueen | 20 | Son | Farmhand | Nebraska |
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)