HJ
Harvey Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Winnebago-County, Illinois
Our Model Tree links this Harvey Johnson across the 1930 and 1940 US Censuses in Winnebago-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 10-person household.
Age 19
b. ~1921
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Winnebago-County, Illinois |
| Surname | Johnson |
| Given Name | Harvey |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rockford |
| 1935 Residence (County) | Winnebago |
| Additional Details | |
| Occupation | Machinist apprentice |
| Industry | Die & Tool Manufacturing |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 478 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Machinist Apprentice |
| Township / Ward | Rockford |
| Est. Birth Year | ~1921 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harvey | Age | Birth yr |
|---|---|---|---|---|
| Gladys Johnson | Daughter | — | 11 | ~1929 |
| Frances Johnson | Daughter | — | 17 | ~1923 |
| Doris Johnson | Daughter | — | 15 | ~1925 |
| Helge Johnson | Head | — | 51 | ~1889 |
| Carl Johnson | Son | — | 22 | ~1918 |
| Chester Johnson | Son | — | 25 | ~1915 |
| Harvey Johnson | Son | — | 19 | ~1921 |
| Robert Johnson | Son | — | 27 | ~1913 |
| Dorothy Johnson | Daughter | — | 20 | ~1920 |
| Esther Johnson | Spouse | — | 49 | ~1891 |
Census Appearances
1930
Winnebago, Illinois
Son, age 9
Winnebago, Illinois · implied b. ~1921 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Harvey |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Winnebago-County, Illinois
Son, age 19
Winnebago-County, Illinois · implied b. ~1921 — 10 household members
| Surname | Johnson |
| Given Name | Harvey |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rockford |
| 1935 Residence (County) | Winnebago |
| Occupation | Machinist apprentice |
| Industry | Die & Tool Manufacturing |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 478 |
| Highest Grade | Hs 4 |
| 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 Harvey Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Harvey Johnson
Son · 1940 · age 19 · b. ~1921 · Illinois
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Sibling
Robert Johnson
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Johnson
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Johnson
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Johnson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Johnson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Chester Johnson
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gladys Johnson
Sibling · 1940 · age 11
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 — Winnebago-County, Illinois
Open full size
1940 US Federal Census — Winnebago-County, Illinois
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00913-00726)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Erik Halstatin|Halstaten | 39 | Head | Bricklayer | Sweden |
| 42 | Vera Halstatin|Halstaten | 36 | Wife | — | Sweden |
| 43 | George Halstatin|Halstaten | 6 | Son | — | Illinois |
| 44 | Walter Anderson | 38 | Head | Clutch Inspector | Illinois |
| 45 | Agnes Anderson | 36 | Wife | — | West Virginia |
| 46 | Dorothy Lee Anderson | 19 | Daughter | Wrapper Of Candy | Illinois |
| 47 | Edith Johnson | 42 | Head | Cook | Sweden |
| 48 | Clifford Johnson | 20 | Son | Machine Operator | Illinois |
| 49 | George Johnson | 19 | Son | Meat Market Delivery Boy | Illinois |
| 50 | William Johnson | 17 | Son | — | Illinois |
| 51 | Harold Johnson | 12 | Son | — | Illinois |
| 52 | Axel Swanstrom | 49 | Lodger | Set Up Man Punch Press | Sweden |
| 54 | Ronald Duffey | 29 | Head | Machinist | Illinois |
| 55 | Mabel Duffey | 30 | Wife | — | Rhode Island |
| 56 | Roger Duffey | 4 | Son | — | Illinois |
| 57 | Tony Tangorra | 54 | Head | Grocery Meat Clerk | Italy |
| 58 | Louise Tangorra | 49 | Wife | — | Italy |
| 59 | Ralph Tangorra | 27 | Son | Grocery Meat Clerk | Italy |
| 60 | Maria Disorda | 59 | Mother-in-law | — | Italy |
| 61 | Rudolph Lofgren | 45 | Head | Furniture Maker | Sweden |
| 62 | Julia Lofgren | 45 | Wife | — | Sweden |
| 63 | Herbert Lofgren | 21 | Son | Machine Operator | Illinois |
| 64 | Randolph Lofgren | 11 | Son | — | Illinois |
| 65 | Helge Johnson | 51 | Head | Tool Maker | Sweden |
| 66 | Esther Johnson | 49 | Wife | — | Illinois |
| 67 | Robert Johnson | 27 | Son | Machinist | Illinois |
| 68 | Chester Johnson | 25 | Son | Machinist Apprentice | Illinois |
| 69 | Carl Johnson | 22 | Son | Machinist | Illinois |
| 70 | Dorothy Johnson | 20 | Daughter | Assembly Work | Illinois |
| 71 | Harvey Johnson THIS PERSON | 19 | Son | Machinist Apprentice | Illinois |
| 72 | Frances Johnson | 17 | Daughter | — | Illinois |
| 73 | Doris Johnson | 15 | Daughter | — | Illinois |
| 74 | Gladys Johnson | 11 | Daughter | — | Illinois |
| 75 | Ray Magnuson | 37 | Head | Assembler | Illinois |
| 76 | Lydia Magnuson | 33 | Wife | — | Illinois |
| 77 | Doris Magnuson | 12 | Daughter | — | Illinois |
| 78 | Le Roy Magnuson | 8 | Son | — | Illinois |
| 79 | Hulda Anderson | 52 | Head | — | Sweden |
| 80 | Deborah Peterson | 50 | Sister | Payroll Clerk | 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)