HB
Harold Baker — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Illinois
Our Model Tree links this Harold Baker across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Illinois (XGBoost, ~Confirmed), with identified parents Alonzo & Iva — first a head (b.~1899), then head of a 3-person household.
Age 41
b. ~1899
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Illinois |
| Surname | Baker |
| Given Name | Harold W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Elk Prairie |
| Additional Details | |
| Occupation | Teaching |
| Industry | School Teacher |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 350 |
| Highest Grade | 8 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Teaching |
| Township / Ward | Elk Prairie |
| 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 Harold | Age | Birth yr |
|---|---|---|---|---|
| Ella Baker | Spouse | — | 37 | ~1903 |
| Harold Baker | Head | — | 41 | ~1899 |
| Maxine Baker | Daughter | — | 11 | ~1929 |
Census Appearances
1920
Jefferson, Illinois
Son, age 21
Jefferson, Illinois · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Baker |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Teaching School |
| Industry | Common School |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Jefferson, Illinois
Head, age 30
Jefferson, Illinois · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Baker |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 24 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Veteran | no |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Jefferson-County, Illinois
Head, age 41
Jefferson-County, Illinois · implied b. ~1899 — 3 household members
| Surname | Baker |
| Given Name | Harold W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Elk Prairie |
| Occupation | Teaching |
| Industry | School Teacher |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 350 |
| Highest Grade | 8 |
| 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 Harold Baker across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alonzo Baker (~0.92 confidence) and mother Iva Baker (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alonzo Baker
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Iva Baker
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Baker
Head · 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 — Jefferson-County, Illinois
Open full size
1940 US Federal Census — Jefferson-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00816-00146)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary E Hulbert | 27 | Wife | Housework | Kansas |
| 42 | Leonard Jr. Hulbert | 5 | Son | — | Kansas |
| 43 | Delores Hulbert | 3 | Daughter | — | Illinois |
| 44 | Harold Timothy H. Hulbert | 1 | Son | — | Illinois |
| 45 | Eri Wells | 43 | Head | Farming | Illinois |
| 46 | Nettie Wells | 43 | Wife | Housework | Illinois |
| 47 | Kenneth Wells | 21 | Son | Laborer | Illinois |
| 48 | Martha Wells | 19 | Daughter-in-law | Housework | Illinois |
| 49 | Tilda A. Wells | 76 | Head | Housework | Illinois |
| 50 | Willie Raleigh Raleigh | 61 | Head | — | Illinois |
| 51 | Dora Raleigh | 55 | Wife | Housework | Illinois |
| 52 | Charles Raleigh | 24 | Son | Laborer | Illinois |
| 53 | Freda Raleigh | 21 | Daughter | Clerk | Illinois |
| 54 | Everett Raleigh | 19 | Son | — | Illinois |
| 55 | Thomas Raleigh | 16 | Son | — | Illinois |
| 56 | Emmett E. Mendenhall | 49 | Head | Farming | Illinois |
| 57 | Dora E. Mendenhall | 45 | Wife | Housework | Illinois |
| 58 | Elmo E. Mendenhall | 29 | Son | Farming | Illinois |
| 59 | Owen V. Mendenhall | 22 | Son | Laborer | Illinois |
| 60 | Waldo N. Mendenhall | 21 | Son | Laborer | Illinois |
| 61 | Roy D. Mendenhall | 17 | Son | — | Illinois |
| 62 | Arthur C. Mendenhall | 15 | Son | — | Illinois |
| 63 | Wanda B. Mendenhall | 13 | Daughter | — | Illinois |
| 64 | Edna M. Mendenhall | 10 | Daughter | — | Illinois |
| 65 | Evelyn J. Mendenhall | 9 | Daughter | — | Illinois |
| 66 | Floyd E. Lynch | 25 | Lodger | Laborer | Illinois |
| 67 | William Mendenhall | 70 | Lodger | Farming | Illinois |
| 68 | Harold W. Baker THIS PERSON | 41 | Head | Teaching | Illinois |
| 69 | Ella Baker | 37 | Wife | Housework | Illinois |
| 70 | Maxine Baker | 11 | Daughter | — | Illinois |
| 71 | Alonzo Baker | 68 | Head | Farming | Illinois |
| 72 | Grace Baker | 62 | Wife | Housework | Illinois |
| 73 | Lester Baker | 36 | Son | Farming | Illinois |
| 74 | Elijah Hayes | 32 | Head | Laborer | Illinois |
| 75 | Zelba Hayes | 25 | Wife | Housework | Illinois |
| 76 | Daniel Hayes | 7 | Son | — | Illinois |
| 77 | Donald W. Hayes | 5 | Son | — | Illinois |
| 78 | Elijah Jr. Hayes | 2 | Son | — | Illinois |
| 79 | Arley H. Connelly | 29 | Lodger | Miner | Illinois |
| 80 | Nelson Martin | 55 | Head | Farming | Illinois |
Pedigree Summary
Harold
Gen 1 · 2 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)