AC
Arthur Carlson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lake-County, Illinois
Our Model Tree links this Arthur Carlson across the 1910, 1920, 1930 and 1940 US Censuses in Lake-County, Illinois (XGBoost, ~Confirmed), with identified parents Andus & Gus — first a head (b.~1903), then head of a 7-person household.
Age 37
b. ~1903
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lake-County, Illinois |
| Surname | Carlson |
| Given Name | Arthur |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Mundelein Village |
| 1935 Residence (County) | Lake |
| Additional Details | |
| Occupation | Chauffeur |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 55 |
| Income (1939) | 1200 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Chauffeur |
| Township / Ward | Mundelein Village |
| Est. Birth Year | ~1903 |
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 |
|---|---|---|---|---|
| Stanley Carlson | Other | — | 30 | ~1910 |
| Signe Carlson | Spouse | — | 34 | ~1906 |
| Betty Carlson | Daughter | — | 13 | ~1927 |
| Arthur Carlson | Son | — | 6 | ~1934 |
| Verna Carlson | Daughter | — | 8 | ~1932 |
| Arthur Carlson | Head | — | 37 | ~1903 |
| Doris Carlson | Daughter | — | 4 | ~1936 |
Census Appearances
1910
Lake, Illinois
Son, age 6
Lake, Illinois · implied b. ~1904 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Arthur |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Lake, Illinois
Son, age 16
Lake, Illinois · implied b. ~1904 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Arthur |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Lake, Illinois
Head, age 26
Lake, Illinois · implied b. ~1904 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Arthur E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 25 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Accountant |
| Industry | Poultry Supplies |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 50.00 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Lake-County, Illinois
Head, age 37
Lake-County, Illinois · implied b. ~1903 — 7 household members
| Surname | Carlson |
| Given Name | Arthur |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Mundelein Village |
| 1935 Residence (County) | Lake |
| Occupation | Chauffeur |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 55 |
| Income (1939) | 1200 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 2 locations, using XGBoost record linkage. Identified parents: father Andus Carlson (~0.92 confidence) and father Gus Carlson (~0.92 confidence) and mother Anna Carlson (~0.92 confidence) and mother Anna Carlson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Andus Carlson
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Gus Carlson
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Anna Carlson
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Anna Carlson
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Arthur Carlson
Head · 1940 · age 37 · b. ~1903 · Illinois
★ 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 — Lake-County, Illinois
Open full size
1940 US Federal Census — Lake-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00829-00276)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dorothy Huffman | 17 | Daughter | — | Illinois |
| 42 | Howard Huffman | 15 | Son | — | Illinois |
| 43 | Warren Huffman | 12 | Son | — | Illinois |
| 44 | Lorraine Huffman | 8 | Daughter | — | Illinois |
| 45 | Frank L. Bluhm | 56 | Head | Truck Driver | Iowa |
| 46 | Florence O. Bluhm | 53 | Wife | — | Indiana |
| 47 | Neil M. Reidell | 26 | Head | Truck Driver | Iowa |
| 48 | Elizabeth O. Reidell | 25 | Wife | — | Yugoslavia |
| 49 | Donna M. Reidell | 1 | Daughter | — | Illinois |
| 50 | Ralph Reidell | 24 | Brother | Truck Driver | Iowa |
| 51 | Eryla Reidell | 29 | Sister in law | Packer | Illinois |
| 52 | John Celba | 22 | Head | Proprietor | Illinois |
| 53 | Doris O. Celba | 24 | Wife | Saleswoman | Illinois |
| 54 | Mary Pospisil | 60 | Head | — | Czechoslovakia |
| 55 | Otto Sima | 73 | Head | — | Czechoslovakia |
| 56 | Tracy Knight | 40 | Head | Bookkeeper | Canada English |
| 57 | Mildred O. Knight | 34 | Wife | — | Illinois |
| 58 | Roger Knight | 9 | Son | — | Illinois |
| 59 | Bruce Knight | 4 | Son | — | Illinois |
| 60 | Theodore Knight | 4 | Son | — | Illinois |
| 61 | Tony Gautier | 58 | Head | Dryer | Italy |
| 62 | Adalgisa O. Gautier | 59 | Wife | Packer | Italy |
| 63 | Roy Helbling | 47 | Head | Brakeman | North Dakota |
| 64 | Alta O. Helbling | 32 | Wife | — | Illinois |
| 65 | Joseph Helbling | 24 | Son | Switchman | North Dakota |
| 66 | Magdalene Helbling | 15 | Daughter | — | North Dakota |
| 67 | Phyllis Helbling | 8 | Daughter | — | Illinois |
| 68 | James Helbling | 7 | Son | — | Illinois |
| 69 | John O. Carrensen | 80 | Head | — | Germany |
| 70 | Sophie Carrensen | 68 | Wife | — | Germany |
| 71 | Harry Carrensen | 47 | Son | — | Illinois |
| 72 | Arthur Carlson THIS PERSON | 37 | Head | Chauffeur | Illinois |
| 73 | Signe O. Carlson | 34 | Wife | — | Illinois |
| 74 | Betty A. Carlson | 13 | Daughter | — | Illinois |
| 75 | Verna M. Carlson | 8 | Daughter | — | Illinois |
| 76 | Arthur Jr. Carlson | 6 | Son | — | Illinois |
| 77 | Doris Carlson | 4 | Daughter | — | Illinois |
| 78 | Stanley Carlson | 30 | Brother | Helper To Carpenter | Illinois |
| 79 | John F. Morrison | 55 | Head | Gardener | Illinois |
| 80 | Caroline Morrison | 56 | Wife | — | Wisconsin |
Pedigree Summary
Arthur
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)