IJ
Isaac Johnson — 1940 US Census Record
Model Tree available1940 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), with identified parents Samuel & Celestine — first a head (b.~1907), then head of a 6-person household.
Age 33
b. ~1907
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 | 33 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (City) | New Orleans City |
| 1935 Residence (County) | Orleans |
| Additional Details | |
| Occupation | Laborer |
| Industry | I. C. R. R. |
| Class of Worker | PW |
| Hours Worked | 24 |
| 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 City |
| Est. Birth Year | ~1907 |
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 |
|---|---|---|---|---|
| Helen Johnson | Daughter | — | 10 | ~1930 |
| Alice Johnson | Daughter | — | 7 | ~1933 |
| Isaac Johnson | Head | — | 33 | ~1907 |
| Gary Johnson | Son | — | 5 | ~1935 |
| Harold Johnson | Son | — | 12 | ~1928 |
| Idelia Johnson | Spouse | — | 38 | ~1902 |
Census Appearances
1920
Orleans, Louisiana
Son, age 14
Orleans, Louisiana · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Isaac |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1930
Orleans, Louisiana
Head, age 25
Orleans, Louisiana · implied b. ~1905 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Louisiana |
| Age at First Marriage | 16 |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Occupation | laborer |
| Industry | asphalt Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 8.00 |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
Orleans-County, Louisiana
Head, age 33
Orleans-County, Louisiana · implied b. ~1907 — 6 household members
| Surname | Johnson |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (City) | New Orleans City |
| 1935 Residence (County) | Orleans |
| Occupation | Laborer |
| Industry | I. C. R. R. |
| Class of Worker | PW |
| Hours Worked | 24 |
| 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. Identified parents: father Samuel Johnson (~0.92 confidence) and mother Celestine Johnson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Samuel Johnson
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Celestine Johnson
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Isaac Johnson
Head · 1940 · age 33 · b. ~1907 · Louisiana
★ 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 — Orleans-County, Louisiana
Open full size
1940 US Federal Census — Orleans-County, Louisiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01433-00046)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Peter J. Kreger | 49 | Head | Bar Tender | Louisiana |
| 2 | Irma Kreger | 40 | Wife | — | Louisiana |
| 3 | Raymond Kreger | 14 | Son | — | Louisiana |
| 4 | Randolph, Raymond Kreger | 9 | Nephew | — | Louisiana |
| 5 | George Lewis | 53 | Head | Laborer | Louisiana |
| 6 | Mercedes Lewis | 29 | Wife | Housework | Louisiana |
| 7 | Irvin Martin | 26 | Head | Laborer | Louisiana |
| 8 | Alma Martin | 24 | Wife | — | Louisiana |
| 9 | James Martin | 2 | Son | 0 | Louisiana |
| 10 | Harriet Vance | 75 | Head | — | Mississippi |
| 11 | Robert Pratty | 50 | Son | — | Mississippi |
| 12 | Percy Walden | 36 | Head | Watchman | Louisiana |
| 13 | Mary Walden | 44 | Wife | Laundress | Louisiana |
| 14 | Hazel Jackson | 36 | Boarder | Laborer | Louisiana |
| 15 | Edward Henderson | 30 | Head | Laborer | Louisiana |
| 16 | Allie Henderson | 30 | Wife | — | Louisiana |
| 17 | Barbara Henderson | 10 | Daughter | — | Louisiana |
| 18 | Ruby Henderson | 8 | Daughter | — | Louisiana |
| 19 | Henry Henderson | 5 | Son | — | Louisiana |
| 20 | Victor Henderson | 4 | Son | — | Louisiana |
| 21 | Dorothy Henderson | 2 | Daughter | — | Louisiana |
| 22 | Isaac Johnson THIS PERSON | 33 | Head | Laborer | Louisiana |
| 23 | Idelia Johnson | 38 | Wife | Laundress | Louisiana |
| 24 | Harold Johnson | 12 | Son | — | Louisiana |
| 25 | Helen Johnson | 10 | Daughter | — | Louisiana |
| 26 | Alice Johnson | 7 | Daughter | — | Louisiana |
| 27 | Gary Johnson | 5 | Son | — | Louisiana |
| 28 | John Randolph | 48 | Head | Barber | Louisiana |
| 29 | Arelia Randolph | 38 | Wife | Maid | Louisiana |
| 30 | Felton Randolph | 18 | Son | — | Louisiana |
| 31 | Mary Randolph | 15 | Daughter | — | Louisiana |
| 32 | Millie Spencer | 32 | Head | Housework | Louisiana |
| 33 | Frank Spencer | 15 | Son | — | Louisiana |
| 34 | Joseph Parker | 24 | Brother | Laborer | Louisiana |
| 35 | Ludovic Morris | 31 | Head | Housework | Louisiana |
| 36 | Beatrice Morris | 24 | Daughter | — | Louisiana |
| 37 | Ida Morris | 45 | Mother | — | Louisiana |
| 38 | Mat Morris | 25 | Brother | — | Louisiana |
| 39 | Willie Batiste | 47 | Head | Laborer | Louisiana |
| 40 | Octavia Batiste | 33 | Wife | Housework | Louisiana |
Pedigree Summary
Isaac
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)