LD
Lawrence Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Story-County, Iowa
Our Model Tree links this Lawrence Davis across the 1920, 1930 and 1940 US Censuses in Story-County, Iowa (XGBoost, ~Confirmed), with identified parents Edwin & Cora — first a son (b.~1916), then head of a 5-person household.
Age 24
b. ~1916
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Story-County, Iowa |
| Surname | Davis |
| Given Name | Lawrence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Richland Twp |
| 1935 Residence (County) | Story |
| Additional Details | |
| Occupation | Carpenter |
| Industry | Building |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 600 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Carpenter |
| Township / Ward | Richland Twp |
| Est. Birth Year | ~1916 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lawrence | Age | Birth yr |
|---|---|---|---|---|
| Orval Davis | Son | — | 28 | ~1912 |
| Eldon Davis | Son | — | 22 | ~1918 |
| Eva Davis | Spouse | — | 61 | ~1879 |
| Edwin Davis | Head | — | 67 | ~1873 |
| Lawrence Davis | Son | — | 24 | ~1916 |
Census Appearances
1920
Story, Iowa
Son, age 5
Story, Iowa · implied b. ~1915 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Lawrence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Illinois |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Story, Iowa
Son, age 15
Story, Iowa · implied b. ~1915 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Lawrence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Story-County, Iowa
Son, age 24
Story-County, Iowa · implied b. ~1916 — 5 household members
| Surname | Davis |
| Given Name | Lawrence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Richland Twp |
| 1935 Residence (County) | Story |
| Occupation | Carpenter |
| Industry | Building |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 600 |
| 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 Lawrence Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edwin Davis (~0.92 confidence) and mother Cora Davis (~0.92 confidence) and mother Eva Davis (~0.92 confidence) and mother Eva Davis (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edwin Davis
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Cora Davis
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Eva Davis
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Eva Davis
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lawrence Davis
Son · 1940 · age 24 · b. ~1916 · Iowa
★ You are viewing this record
Sibling
Eldon Davis
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Orval Davis
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Story-County, Iowa
Open full size
1940 US Federal Census — Story-County, Iowa
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01206-00891)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Hal D. Mckimm | 26 | Head | Farm | Iowa |
| 42 | Marian Mckimm | 22 | Wife | H. Wife | Minnesota |
| 43 | Janice Mckimm | 3 | Daughter | — | Iowa |
| 44 | Vesper Mckimm | 2 | Daughter | — | Iowa |
| 45 | Isaac Mckimm | 70 | Father | — | Iowa |
| 46 | Harold Lobaugh | 36 | Head | Farm | Iowa |
| 47 | Mable Lobaugh | 40 | Wife | H. Wife | Kentucky |
| 48 | Ora Sampson | 24 | Maid | Housemaid | Iowa |
| 49 | Ernest Skogerbo | 29 | Head | Farm Hand | Iowa |
| 50 | Josephine Skogerbo | 25 | Wife | H. Wife | Minnesota |
| 51 | Lucy A. Luhn | 68 | Head | Np | Illinois |
| 52 | Olaf Luhn | 46 | Son | Carpenter | Iowa |
| 53 | Richard Anderson | 47 | Head | Farm | Denmark |
| 54 | Eline Anderson | 51 | Wife | H. Wife | Iowa |
| 55 | Julia Anderson | 22 | Daughter | — | Iowa |
| 56 | Robert Anderson | 12 | Son | — | Iowa |
| 57 | Frank Boelk | 47 | Head | Farm Hand | Iowa |
| 58 | Lila Boelk | 45 | Wife | H. Wife | Iowa |
| 59 | Darline Boelk | 18 | Daughter | Office | Iowa |
| 60 | Ray D. Chadwick | 47 | Head | Farm | Iowa |
| 61 | Ellen Chadwick | 45 | Wife | H. Wife | Iowa |
| 62 | Fred Chadwick | 27 | Son | — | Iowa |
| 63 | Charlie Chadwick | 25 | Son | — | Iowa |
| 64 | Donald Hathaway | 23 | H. Hand | H. Hand | Iowa |
| 65 | Donald Day | 33 | Head | Farm | Iowa |
| 66 | Fern Day | 26 | Wife | H. Wife | Iowa |
| 67 | Duane Day | 6 | Son | — | Iowa |
| 68 | Gayle Day | 5 | Daughter | — | Iowa |
| 69 | Jenie Day | 1 | Son | — | Iowa |
| 70 | Edwin Davis | 67 | Head | Farm | Iowa |
| 71 | Eva Davis | 61 | Wife | H. Wife | Illinois |
| 72 | Orval Davis | 28 | Son | Farm Hand | Illinois |
| 73 | Lawrence Davis THIS PERSON | 24 | Son | Carpenter | Iowa |
| 74 | Eldon Davis | 22 | Son | Office | Iowa |
| 75 | H. J. Eide | 49 | Head | Farm | Norway |
| 76 | Ole Grunneland | 45 | H. Hand | H. Hand | Iowa |
| 77 | Nell Grunneland | 47 | Wife | H. Wife | Iowa |
| 78 | Betty Grunneland | 10 | Daughter | — | Iowa |
Related Census Records
Pedigree Summary
Lawrence + 2 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)