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Harold Allen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Dekalb-County, Illinois
Our Model Tree links this Harold Allen across the 1930 and 1940 US Censuses in Dekalb-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 11-person household.
Age 20
b. ~1920
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Dekalb-County, Illinois |
| Surname | Allen |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Sandwich City |
| 1935 Residence (County) | DeKalb |
| Additional Details | |
| Occupation | laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 70 |
| Income (1939) | 50 |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Sandwich City |
| Est. Birth Year | ~1920 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Ralph Allen | Son | — | 24 | ~1916 |
| Tollie Allen | Spouse | — | 41 | ~1899 |
| Byford Allen | Son | — | 18 | ~1922 |
| Ruben Allen | Son | — | 8 | ~1932 |
| David Allen | Son | — | 2 | ~1938 |
| Joseph Allen | Son | — | 22 | ~1918 |
| Harold Allen | Son | — | 20 | ~1920 |
| Wilma Allen | Daughter | — | 11 | ~1929 |
| Charles Allen | Son | — | 13 | ~1927 |
| James Allen | Son | — | 16 | ~1924 |
| Sidney Allen | Son | — | 5 | ~1935 |
Census Appearances
1930
Dekalb, Illinois
Son, age 11
Dekalb, Illinois · implied b. ~1919 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allen |
| Given Name | Harold E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| 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
Dekalb-County, Illinois
Son, age 20
Dekalb-County, Illinois · implied b. ~1920 — 11 household members
| Surname | Allen |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Sandwich City |
| 1935 Residence (County) | DeKalb |
| Occupation | laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 70 |
| Income (1939) | 50 |
| Highest Grade | H 3 |
| 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 Harold Allen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Harold Allen
Son · 1940 · age 20 · b. ~1920 · Illinois
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Sibling
Ruben Allen
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wilma Allen
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ralph Allen
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Allen
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Allen
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Allen
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sidney Allen
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Allen
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Byford Allen
Sibling · 1940 · age 18
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 — Dekalb-County, Illinois
Open full size
1940 US Federal Census — Dekalb-County, Illinois
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00793-00788)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Tollie Allen | 41 | Wife | — | Illinois |
| 42 | Ralph Allen | 24 | Son | Laborer | Illinois |
| 43 | Joseph Allen | 22 | Son | Laborer | Illinois |
| 44 | Harold Allen THIS PERSON | 20 | Son | Laborer | Illinois |
| 45 | Byford Allen | 18 | Son | — | Illinois |
| 46 | James Robert Allen | 16 | Son | — | Illinois |
| 47 | Charles Allen | 13 | Son | — | Illinois |
| 48 | Wilma June Allen | 11 | Daughter | — | Illinois |
| 49 | Ruben Allen | 8 | Son | — | Illinois |
| 50 | Sidney Allen | 5 | Son | — | Illinois |
| 51 | David Allen | 2 | Son | — | Illinois |
| 53 | Mabel Woodward | 68 | Head | — | Illinois |
| 54 | Grace Coleman | 65 | Sister | — | Illinois |
| 55 | Velda Bernie Brown | 27 | Lodger | Music Teacher | Nebraska |
| 56 | Jeanette Breckenridge | 27 | Lodger | Teacher | Iowa |
| 57 | Charles L. Stimson | 77 | Head | Lawyer | Illinois |
| 58 | Lorene H. Stimson | 70 | Wife | — | Illinois |
| 59 | Lorne L. Stimson | 32 | Daughter | Clerk | Illinois |
| 60 | Wendell A. Postle | 49 | Head | Doctor Physician | New York |
| 61 | J. Jean R. Postle | 51 | Wife | — | Illinois |
| 62 | Jo. Ann Postle | 14 | Daughter | — | Illinois |
| 63 | John Flynn | 27 | Head | Assembly | Illinois |
| 64 | Ruth Flynn | 26 | Wife | — | Illinois |
| 65 | Patricia Flynn | 4 | Daughter | — | Illinois |
| 66 | James Flynn | 23 | Head | Blacksmith | Illinois |
| 67 | Pearl Flynn | 24 | Wife | — | Iowa |
| 68 | Jo Ann Flynn | 12 | Daughter | — | Illinois |
| 69 | Norman Olgia | 48 | Head | Dentist | Wisconsin |
| 70 | Bessie Olgia | 47 | Wife | — | Illinois |
| 71 | Donald Olgia | 20 | Son | — | Illinois |
| 72 | Janet Olgia | 15 | Daughter | — | Illinois |
| 73 | Clara Earl | 24 | Housekeeper | Housekeeper | Illinois |
| 74 | Donald Mckinley | 41 | Salesman | Salesman | Illinois |
| 75 | Donald Mckinley | 3 | Son | — | Illinois |
| 76 | John Valonin | 48 | Head | Watchman | Illinois |
| 77 | Myrtle Valonin | 46 | Wife | — | Pennsylvania |
| 78 | Lavern Valonin | 23 | Son | Polisher | Illinois |
| 79 | Jennie Bartholomew | 59 | Head | — | Illinois |
| 80 | Ella Voris | 88 | Mother | — | Illinois |
Related Census Records
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)