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Isaac Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Orleans-County, Louisiana
Our Model Tree links this Isaac Johnson across the 1920, 1930 and 1940 US Censuses in Orleans-County, Louisiana (XGBoost, ~Confirmed) — first a head (b.~1895), then head of a 6-person household.
Age 45
b. ~1895
Male
Head
Born: Louisiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Orleans-County, Louisiana |
| Surname | Johnson |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (City) | New Orleans |
| 1935 Residence (County) | Orleans |
| Additional Details | |
| Occupation | Laborer |
| Industry | Street Construction |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 988 |
| Highest Grade | No 0 |
| 1935 Residence | Same Place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Occupation | Laborer |
| Township / Ward | New Orleans |
| Est. Birth Year | ~1895 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Isaac | Age | Birth yr |
|---|---|---|---|---|
| Ismael Johnson | Daughter | — | 21 | ~1919 |
| Rachel Johnson | Daughter | — | 18 | ~1922 |
| Isaac Johnson | Head | — | 45 | ~1895 |
| Mary Hayes | Other | — | 68 | ~1872 |
| Isaac Johnson | Son | — | 20 | ~1920 |
| Louella Johnson | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Orleans, Louisiana
Head, age 27
Orleans, Louisiana · implied b. ~1893 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Occupation | Laborer |
| Industry | General |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1930
Orleans, Louisiana
Head, age 36
Orleans, Louisiana · implied b. ~1894 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Louisiana |
| Age at First Marriage | 22 |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Virginia |
| Occupation | Laborer |
| Industry | Road construction |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 12.00 |
| Veteran | No |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
Orleans-County, Louisiana
Head, age 45
Orleans-County, Louisiana · implied b. ~1895 — 6 household members
| Surname | Johnson |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (City) | New Orleans |
| 1935 Residence (County) | Orleans |
| Occupation | Laborer |
| Industry | Street Construction |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 988 |
| Highest Grade | No 0 |
| 1935 Residence | Same Place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
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 Isaac Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Isaac Johnson
Head · 1940 · age 45 · b. ~1895 · Louisiana
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Orleans-County, Louisiana
Open full size
1940 US Federal Census — Orleans-County, Louisiana
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01435-00053)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dorothy Mitchell | 5 | Lodger | — | Louisiana |
| 42 | Alice Smith | 63 | Head | — | Louisiana |
| 43 | Frances Parker | 35 | Lodger | Cook | Louisiana |
| 44 | Philip Johnson | 63 | Head | — | Louisiana |
| 45 | Orelia Johnson | 62 | Wife | — | Louisiana |
| 46 | Ozy Johnson | 33 | Son | Book Binder | Louisiana |
| 47 | Albert Johnson | 34 | Head | Laborer | Louisiana |
| 48 | Mildred Johnson | 22 | Daughter | — | Louisiana |
| 49 | Selma Jones | 52 | Mother-in-law | — | Louisiana |
| 50 | Ellen Jones | 28 | Sister-in-law | Houseworker | Louisiana |
| 51 | Sadie Johnson | 34 | Head | Laundress | Louisiana |
| 52 | Julia Collier | 44 | Lodger | Laborer | Louisiana |
| 53 | Accidentally Omitted | None | — | — | — |
| 54 | Edna Allen | 34 | Head | Houseworker | Louisiana |
| 55 | John Allen | 15 | Son | Helper | Louisiana |
| 56 | George Dyer | 65 | Head | — | Louisiana |
| 57 | Julia Dyer | 63 | Wife | — | Louisiana |
| 58 | George Dyer | 32 | Son | Laborer | Louisiana |
| 59 | James Dyer | 11 | Grandson | — | Louisiana |
| 60 | Lucille Dyer | 10 | Granddaughter | — | Louisiana |
| 61 | Sterling Dyer | 9 | Grandson | — | Louisiana |
| 62 | Percy Dyer | 6 | Grandson | — | Louisiana |
| 63 | Luther Jackson | 36 | Head | Laborer | Mississippi |
| 64 | Alice Jackson | 30 | Wife | Laundress | Louisiana |
| 65 | Walter Harris | 23 | Head | Errand Boy | Louisiana |
| 66 | Melanie Harris | 20 | Wife | Houseworker | Louisiana |
| 67 | Isaac Johnson THIS PERSON | 45 | Head | Laborer | Louisiana |
| 68 | Louella Johnson | 44 | Wife | — | Louisiana |
| 69 | Ismael Johnson | 21 | Daughter | Houseworker | Louisiana |
| 70 | Isaac Johnson | 20 | Son | Porter | Louisiana |
| 71 | Rachel Johnson | 18 | Daughter | — | Louisiana |
| 72 | Mary Hayes | 68 | Mother-in-law | — | Louisiana |
| 73 | Fermin Candall | 41 | Head | Laborer | Louisiana |
| 74 | Fermin Candall | 19 | Son | Paper Carrier | Louisiana |
| 75 | Bernard Candall | 12 | Son | — | Louisiana |
| 76 | Willie Abraham | 25 | Lodger | Gardiner | Mississippi |
| 77 | Clarence Collins | 24 | Head | Laborer | Louisiana |
| 78 | Winee Collins | 21 | Wife | — | Louisiana |
| 79 | Natalie Collins | 3 | Daughter | — | Louisiana |
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)