AC
Arthur Carlson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lucas-County, Iowa
Our Model Tree links this Arthur Carlson across the 1910, 1920, 1930 and 1940 US Censuses in Lucas-County, Iowa (XGBoost, ~Confirmed), with identified parents Axel & Charles — first a son (b.~1902), then head of a 7-person household.
Age 38
b. ~1902
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lucas-County, Iowa |
| Surname | Carlson |
| Given Name | Arthur E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Chariton City |
| 1935 Residence (County) | Lucas County |
| Additional Details | |
| Occupation | Miner |
| Industry | Coal mine |
| Class of Worker | PW |
| Hours Worked | 21 |
| Income (1939) | 850 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Miner |
| Township / Ward | Chariton City |
| Est. Birth Year | ~1902 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Arthur | Age | Birth yr |
|---|---|---|---|---|
| Arthur Carlson | Son | — | 38 | ~1902 |
| Mary Davison | Other | — | 9 | ~1931 |
| Hilda Davison | Daughter | — | 36 | ~1904 |
| Alvina Carlson | Daughter | — | 31 | ~1909 |
| Ina Davison | Other | — | 11 | ~1929 |
| John Carlson | Head | — | 61 | ~1879 |
| Ina Carlson | Daughter | — | 34 | ~1906 |
Census Appearances
1910
Monroe, Iowa
Son, age 8
Monroe, Iowa · implied b. ~1902 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Arthur |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Swed-Swedish |
| Mother's Birthplace | Swed-Swedish |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Monroe, Iowa
Son, age 17
Monroe, Iowa · implied b. ~1903 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Arthur E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Miner |
| Industry | Coal mine |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Lucas, Iowa
Son, age 28
Lucas, Iowa · implied b. ~1902 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Arthur E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Lucas-County, Iowa
Son, age 38
Lucas-County, Iowa · implied b. ~1902 — 7 household members
| Surname | Carlson |
| Given Name | Arthur E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Chariton City |
| 1935 Residence (County) | Lucas County |
| Occupation | Miner |
| Industry | Coal mine |
| Class of Worker | PW |
| Hours Worked | 21 |
| Income (1939) | 850 |
| 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 Arthur Carlson across 4 US Census years (1910, 1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father Axel Carlson (~0.92 confidence) and father Charles Carlson (~0.92 confidence) and father John Carlson (~0.92 confidence) and father John Carlson (~0.92 confidence) and mother Elma Carlson (~0.92 confidence) and mother Emma Carlson (~0.92 confidence) and mother Emma Carlson (~0.92 confidence). The pedigree spans 1 generation with 7 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Axel Carlson
b. ~1864
Source father
● Household
· direct · ~0.92
Father
Charles Carlson
b. ~1862
Source father
● Household
· direct · ~0.92
Father
John Carlson
b. ~1879
Source father
● Household
· direct · ~0.92
Father
John Carlson
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Elma Carlson
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Emma Carlson
b. ~1868
Source mother
● Household
· direct · ~0.92
Mother
Emma Carlson
b. ~1867
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Arthur Carlson
Son · 1940 · age 38 · b. ~1902 · Iowa
★ You are viewing this record
Sibling
Alvina Carlson
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hilda Davison
Sibling · 1940 · age 36
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ina Carlson
Sibling · 1940 · age 34
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 — Lucas-County, Iowa
Open full size
1940 US Federal Census — Lucas-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01178-00465)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John G Gray | 42 | Head | Civil Engineer | Minnesota |
| 42 | Lillian E Gray | 39 | Wife | — | Minnesota |
| 43 | Jean C Gray | 17 | Daughter | — | Minnesota |
| 44 | Betty L Gray | 16 | Daughter | — | Minnesota |
| 45 | Robert G Gray | 7 | Son | — | Iowa |
| 46 | John F Ferrel | 41 | Head | Bookkeeper | Iowa |
| 47 | Grace A Ferrel | 39 | Wife | — | Iowa |
| 48 | Beth L Ferrel | 7 | Daughter | — | Iowa |
| 49 | John A Carlson | 61 | Head | Miner | Sweden |
| 50 | Arthur E Carlson THIS PERSON | 38 | Son | Miner | Iowa |
| 51 | Ina Carlson | 34 | Daughter | Bookkeeper | Iowa |
| 52 | Alvina A Carlson | 31 | Daughter | Operator | Iowa |
| 53 | Hilda E Davison | 36 | Daughter | Sales Lady | Iowa |
| 54 | Ina J Davison | 11 | Granddaughter | — | Iowa |
| 55 | Mary L Davison | 9 | Granddaughter | — | Iowa |
| 56 | Louis R Hooper | 58 | Head | City Letter Carrier | Nebraska |
| 57 | Ethel L Hooper | 54 | Wife | — | Iowa |
| 58 | Nancy J Hooper | 18 | Daughter | — | Iowa |
| 59 | Enos A Anderson | 70 | Head | Attorney | Iowa |
| 60 | Lucile M Anderson | 37 | Wife | Attorney | Iowa |
| 61 | Margaret V Bailey | 15 | Daughter | — | Virginia |
| 62 | Frank H Lathrop | 65 | Head | Pastor | Illinois |
| 63 | Mae S Lathrop | 56 | Wife | — | Indiana |
| 64 | Cora E Hicks | 66 | Head | — | Illinois |
| 65 | Hazel Vincent | 29 | Niece | Deputy Recorder | Iowa |
| 66 | Flora Newhouse | 75 | Lodger | — | Iowa |
| 67 | Gus A Almquist | 68 | Head | Proprietor | Sweden |
| 68 | Lillian U Almquist | 48 | Wife | — | Iowa |
| 69 | Merry Ann Almquist | 9 | Daughter | — | Iowa |
| 70 | Charley E Almquist | 71 | Brother | Salesman | Sweden |
| 71 | Jack E Plows | 22 | Head | Butcher | Iowa |
| 72 | Dorothy M Plows | 20 | Wife | — | Iowa |
| 73 | De Verne Liddicoat | 28 | Head | Drug Clerk | Iowa |
| 74 | Ione D Liddicoat | 25 | Wife | — | Illinois |
| 75 | Charles F Wennerstrum | 50 | Head | District Judge | Illinois |
| 76 | Helen R Wennerstrum | 45 | Wife | — | Iowa |
| 77 | Roger F Wennerstrum | 14 | Son | — | Iowa |
| 78 | Scott T Wennerstrum | 12 | Son | — | Iowa |
| 79 | Joanna H Wennerstrum | 10 | Daughter | — | Iowa |
| 80 | Roberta Hupp | 20 | Maid | Maid | Iowa |
Pedigree Summary
Arthur + 3 siblings
Gen 1 · 7 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)