AL
Arthur Larson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Arthur Larson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1893), then head of a 5-person household.
Age 47
b. ~1893
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Larson |
| Given Name | Arthur |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Chicago city |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Maintenance man |
| Industry | Wholesale drugs |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1000 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Maintenance Man |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1893 |
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 Arthur | Age | Birth yr |
|---|---|---|---|---|
| Mabel Larson | Spouse | — | 43 | ~1897 |
| Arthur Larson | Son | — | 21 | ~1919 |
| Jeanette Larson | Daughter | — | 4 | ~1936 |
| Norman Larson | Son | — | 11 | ~1929 |
| Arthur Larson | Head | — | 47 | ~1893 |
Census Appearances
1920
Cook, Illinois
Head, age 27
Cook, Illinois · implied b. ~1893 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larsen |
| Given Name | Arthur |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Assembler |
| Industry | Radiators |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | R |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Cook, Illinois
Head, age 37
Cook, Illinois · implied b. ~1893 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larsen |
| Given Name | Arthur H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 24 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Painter |
| Industry | Wholesale Drug |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 45.00 |
| Radio Set | R |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Cook-County, Illinois
Head, age 47
Cook-County, Illinois · implied b. ~1893 — 5 household members
| Surname | Larson |
| Given Name | Arthur |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Chicago city |
| 1935 Residence (County) | Cook |
| Occupation | Maintenance man |
| Industry | Wholesale drugs |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1000 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Larson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Arthur Larson
Head · 1940 · age 47 · b. ~1893 · 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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01002-00456)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Chris Pedersen | 26 | Son-in-law | Apprentice | Michigan |
| 2 | Mildred Pedersen | 23 | Daughter | — | Illinois |
| 3 | Max Brack | 57 | Head | Contractor | Illinois |
| 4 | Elsie Brack | 54 | Wife | — | Illinois |
| 5 | Eleanor Brack | 31 | Daughter | Contractor | Illinois |
| 6 | Sigurd Erickson | 55 | Head | Sheet Metal Worker | Norway |
| 7 | Mabel Erickson | 50 | Wife | — | Illinois |
| 8 | Edith Erickson | 19 | Daughter | Packer | Illinois |
| 9 | Harriet Erickson | 17 | Daughter | — | Illinois |
| 10 | John H Peterson | 61 | Head | Carpenter | Sweden |
| 11 | Myrtle X Peterson | 58 | Wife | — | Michigan |
| 12 | Lester Shafer | 28 | Son-in-law | Pressman | Iowa |
| 13 | Doris Shafer | 28 | Daughter | — | Illinois |
| 14 | Nancy Shafer | 4 | Granddaughter | — | Illinois |
| 15 | Ellen Peterson | 38 | Head | Proprietor | Illinois |
| 16 | Jane Peterson | 36 | Daughter | — | Illinois |
| 17 | Joanne Peterson | 5 | Daughter | — | Illinois |
| 18 | Richard Peterson | 2 | Son | — | Illinois |
| 19 | Elizabeth Peterson | 0 | Daughter | — | Illinois |
| 20 | Clifford Mayer | 40 | Head | Laborer | Illinois |
| 21 | Augusta Mayer | 50 | Wife | — | Germany |
| 22 | Lorraine Mayer | 17 | Daughter | Packer | Illinois |
| 23 | Clifford Mayer | 15 | Son | — | Illinois |
| 24 | Carl Carlson | 54 | Head | Carpenter | Sweden |
| 25 | Mollie Carlson | 52 | Wife | — | Sweden |
| 26 | Mae Carlson | 21 | Daughter | Punch Press Operator | Illinois |
| 27 | Earl Carlson | 19 | Son | Apprentice Carpenter | Illinois |
| 28 | Silas Viken | 56 | Head | Sheet Metal Worker | Norway |
| 29 | Ella Viken | 48 | Wife | — | Norway |
| 30 | Violet Viken | 20 | Daughter | Unskilled Technician | Illinois |
| 31 | Elsie Viken | 17 | Daughter | — | Illinois |
| 32 | Arthur Larson THIS PERSON | 47 | Head | Maintenance Man | Massachusetts |
| 33 | Mabel Larson | 43 | Wife | — | Illinois |
| 34 | Arthur Larson | 21 | Son | Packer | Illinois |
| 35 | Norman Larson | 11 | Son | — | Illinois |
| 36 | Jeanette Larson | 4 | Daughter | — | Illinois |
| 37 | Herman Mundstock | 45 | Head | Truck Driver | Illinois |
| 38 | Anna Mundstock | 39 | Wife | — | Illinois |
| 39 | Shirley Mundstock | 15 | Daughter | — | Illinois |
| 40 | Robert Mundstock | 12 | Son | — | Illinois |
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)