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Charles Harper — 1940 US Census Record
Model Tree available1940 United States Federal Census · Tazewell-County, Illinois
Our Model Tree links this Charles Harper across the 1920, 1930 and 1940 US Censuses in Tazewell-County, Illinois (XGBoost, ~Confirmed), with identified parents Charles & Lydia — first a son (b.~1916), then head of a 4-person household.
Age 24
b. ~1916
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Tazewell-County, Illinois |
| Surname | Harper |
| Given Name | Charles |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | East Peoria |
| 1935 Residence (County) | Tazewell |
| Additional Details | |
| Occupation | Machinist apprentice |
| Industry | Tractor factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 320 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Machinist Apprentice |
| Township / Ward | East Peoria |
| Est. Birth Year | ~1916 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| Charles Harper | Son | — | 24 | ~1916 |
| Ruth Harper | Daughter | — | 19 | ~1921 |
| Robert Trainer | Other | — | 28 | ~1912 |
| Lydia Harper | Head | — | 61 | ~1879 |
Census Appearances
1920
Tazewell, Illinois
Son, age 4
Tazewell, Illinois · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | Chas Edw |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Tazewell, Illinois
Son, age 14
Tazewell, Illinois · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | Charles S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Tazewell-County, Illinois
Son, age 24
Tazewell-County, Illinois · implied b. ~1916 — 4 household members
| Surname | Harper |
| Given Name | Charles |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | East Peoria |
| 1935 Residence (County) | Tazewell |
| Occupation | Machinist apprentice |
| Industry | Tractor factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 320 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| 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 Charles Harper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Harper (~0.92 confidence) and mother Lydia Harper (~0.92 confidence) and mother Lydia Harper (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Harper
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Lydia Harper
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Lydia Harper
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Charles Harper
Son · 1940 · age 24 · b. ~1916 · Illinois
★ You are viewing this record
Sibling
Ruth Harper
Sibling · 1940 · age 19
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 — Tazewell-County, Illinois
Open full size
1940 US Federal Census — Tazewell-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00894-00397)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Werner Harting | 34 | Head | Service Supervisor | Ohio |
| 42 | Anita Harting | 31 | Wife | — | Minnesota |
| 43 | Ann Harting | 5 | Daughter | — | Illinois |
| 44 | Richard Harting | 5 | Son | — | Illinois |
| 45 | Hattie Baylor | 62 | Head | — | Illinois |
| 46 | Helen Baylor | 26 | Daughter | Labeling | Illinois |
| 47 | Milton Bare | 22 | Boarder | Machinist Apprentice | Illinois |
| 48 | William Vetter | 20 | Boarder | Machinist Apprentice | Illinois |
| 49 | Robert Goman | 21 | Boarder | Machinist Apprentice | Montana |
| 50 | Leo Eckart | 42 | Head | Cleaner | Illinois |
| 51 | Sylvia Eckart | 29 | Wife | — | Sweden |
| 52 | Gary Neil Eckart | 6 | Son | — | Missouri |
| 53 | Marilyn J. Eckart | 2 | Daughter | — | Illinois |
| 54 | Ray Williamson | 40 | Head | Machinist | Illinois |
| 55 | Lillian Williamson | 33 | Wife | — | Illinois |
| 56 | Laurena Roberts | 18 | Daughter | — | Illinois |
| 57 | Jack Roberts | 12 | Son | — | Illinois |
| 58 | Edward J. Zimmerman | 34 | Head | Refrigeration | Illinois |
| 59 | Florence Zimmerman | 38 | Wife | — | Illinois |
| 60 | Barbara Jean Zimmerman | 7 | Daughter | — | Massachusetts |
| 61 | Edward Scherer | 63 | Head | Order Clerk | Illinois |
| 62 | Ada Arnold | 73 | Head | — | Illinois |
| 63 | Lydia Harper | 61 | Head | — | Illinois |
| 64 | Charles Harper THIS PERSON | 24 | Son | Machinist Apprentice | Illinois |
| 65 | Ruth Harper | 19 | Daughter | Housework | Illinois |
| 66 | Robert Trainer | 28 | Boarder | Machinist Apprentice | Iowa |
| 67 | Howard Crawford | 38 | Head | Business Agent | Illinois |
| 68 | Louise Crawford | 36 | Wife | — | Illinois |
| 69 | Jean Crawford | 15 | Daughter | — | Illinois |
| 70 | Jack Crawford | 12 | Son | — | Illinois |
| 71 | Marilyn Crawford | 7 | Daughter | — | Illinois |
| 72 | Loren Tentzer | 34 | Head | Asst. Efficiency Engineer | Indiana |
| 73 | Marguerite Tentzer | 36 | Wife | — | Illinois |
| 74 | Mary Ripper | 67 | Mother-in-law | — | Illinois |
| 75 | W. Armond Ripper | 30 | Brother-in-law | Operator | Illinois |
| 76 | Walter Krachenbull | 32 | Head | Machinist Apprentice | Illinois |
| 77 | Catherine Krachenbull | 28 | Wife | — | Illinois |
| 78 | Charmaine J. Krachenbull | 2 | Daughter | — | Illinois |
| 79 | Chester Reichelderfer | 44 | Head | Operator | Illinois |
| 80 | Josephine Reichelderfer | 47 | Wife | — | Illinois |
Pedigree Summary
Charles + 1 sibling
Gen 1 · 3 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)