AC
Alice Carlson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Knox-County, Illinois
Our Model Tree links this Alice Carlson across the 1920, 1930 and 1940 US Censuses in Knox-County, Illinois (XGBoost, ~Confirmed), with identified parents Mark — first a spouse (b.~1899), then head of a 3-person household.
Age 41
b. ~1899
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Knox-County, Illinois |
| Surname | Carlson |
| Given Name | Alice M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Galesburg City |
| 1935 Residence (County) | Knox |
| Additional Details | |
| Highest Grade | H-2 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Galesburg City |
| Est. Birth Year | ~1899 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Alice | Age | Birth yr |
|---|---|---|---|---|
| M Carlson | Head | — | 43 | ~1897 |
| Alice Carlson | Spouse | — | 41 | ~1899 |
| Willard Carlson | Son | — | 16 | ~1924 |
Census Appearances
1920
Knox, Illinois
Spouse, age 21
Knox, Illinois · implied b. ~1899 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Alice M |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Indiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Knox, Illinois
Daughter, age 32
Knox, Illinois · implied b. ~1898 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Alice M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 21 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Knox-County, Illinois
Spouse, age 41
Knox-County, Illinois · implied b. ~1899 — 3 household members
| Surname | Carlson |
| Given Name | Alice M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Galesburg City |
| 1935 Residence (County) | Knox |
| Highest Grade | H-2 |
| 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 Alice Carlson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Mark Longbrake (~0.60 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.6
Father
Mark Longbrake
b. ~1888
Source father
● Household
· direct · ~0.6
This person
Anchor record
Alice Carlson
Spouse · 1940 · age 41 · b. ~1899 · 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 — Knox-County, Illinois
Open full size
1940 US Federal Census — Knox-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00826-00611)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Henry H. Marshall | 34 | Head | Salesman | Illinois |
| 2 | Lillian G. Marshall | 34 | Wife | — | Illinois |
| 3 | Cynthia Ann Marshall | 5 | Daughter | — | Missouri |
| 4 | Kenneth Van Winkle | 36 | Head | Radio Technician | Iowa |
| 5 | Mabel Van Winkle | 44 | Wife | Nurse | Louisiana |
| 6 | Richard Hoffman | 17 | Step-son | — | Illinois |
| 7 | Rodger Hoffman | 15 | Step-son | — | Illinois |
| 8 | Mary Lou Hoffman | 20 | Step-daughter | — | North Carolina |
| 9 | Lloyd White | 41 | Head | Manager | Illinois |
| 10 | Helen White | 37 | Wife | Grocery Clerk | Iowa |
| 11 | Kathleen White | 18 | Daughter | Cashier | Iowa |
| 12 | William White | 15 | Step-son | Helper | Iowa |
| 13 | Axel Johnson | 58 | Head | Hostler Helper | Sweden |
| 14 | Bessie Johnson | 55 | Wife | — | Illinois |
| 15 | William Calaney | 27 | Head | Assistant Manager | Illinois |
| 16 | Laura Q. Calaney | 24 | Wife | — | Illinois |
| 17 | William Jr. Calaney | 1 | Son | — | Illinois |
| 18 | Leo L. Sloan | 42 | Head | Janitor | Illinois |
| 19 | June V. Sloan | 40 | Wife | — | Illinois |
| 20 | Carlo Sloan | 21 | Son | Mechanic | Illinois |
| 21 | Milo Sloan | 19 | Son | Clerk | Illinois |
| 22 | Donna Jean Sloan | 6 | Daughter | — | Illinois |
| 23 | George Norquist | 43 | Head | Owner (Worker) | Illinois |
| 24 | Mary Norquist | 41 | Wife | — | Arkansas |
| 25 | Helen Norquist | 19 | Daughter | Tacker | Illinois |
| 26 | Robert Norquist | 16 | Son | Clerk | Illinois |
| 27 | Edward Norquist | 14 | Son | News Boy | Illinois |
| 28 | Virginia Norquist | 12 | Daughter | — | Illinois |
| 29 | Marilyn Norquist | 4 | Daughter | — | Illinois |
| 30 | Arlie Norquist | 2 | Son | — | Illinois |
| 31 | James L. Patterson | 35 | Head | Foreman | Illinois |
| 32 | Mildred K. Patterson | 35 | Wife | Librarian | England |
| 33 | Ellen Kimble | None | Mother-in-law | — | England |
| 34 | Mackey Longbrake | 73 | Head | — | Illinois |
| 35 | Lula A. Longbrake | 68 | Wife | — | Indiana |
| 36 | George T. Longbrake | 38 | Son | Brakeman | Illinois |
| 37 | Dorothy E. Longbrake | 35 | Daughter-in-law | — | Pennsylvania |
| 38 | M. Willard Carlson | 43 | Head | Traveling Car Agent | Illinois |
| 39 | Alice M. Carlson THIS PERSON | 41 | Wife | — | Illinois |
| 40 | Willard Jr. Carlson | 16 | Son | — | Illinois |
Pedigree Summary
Alice
Gen 1 · 1 parents
~0.6
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)