LJ
Louisa Johnson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · St John, Louisiana
Our Model Tree links this Louisa Johnson across the 1930 and 1940 US Censuses in St John, Louisiana (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 13-person household.
Age 2
b. ~1928
Female
Daughter
Born: Louisiana
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | St John, Louisiana |
| Surname | Johnson |
| Given Name | Louisa |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Additional Details | |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Township / Ward | Edgard |
| Est. Birth Year | ~1928 |
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.
13 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Louisa | Age | Birth yr |
|---|---|---|---|---|
| Bartholemy Johnson | Son | — | 10 | ~1920 |
| Jesse Johnson | Son | — | 23 | ~1907 |
| Eddie Johnson | Son | — | 3 | ~1927 |
| Laura Johnson | Spouse | — | 42 | ~1888 |
| Clarence Johnson | Son | — | 13 | ~1917 |
| Arthur Johnson | Son | — | 8 | ~1922 |
| Frank Johnson | Son | — | 17 | ~1913 |
| Louisa Johnson | Daughter | — | 2 | ~1928 |
| Viola Johnson | Daughter | — | 5 | ~1925 |
| Jimmie Johnson | Son | — | 18 | ~1912 |
| Eliza Johnson | Daughter | — | 11 | ~1919 |
| Eliza Lanamont | Other | — | 62 | ~1868 |
| Bartholemy Johnson | Head | — | 47 | ~1883 |
Census Appearances
1930
St John, …
Daughter, age 2
St John, Louisiana · implied b. ~1928 — 13 household members
| Surname | Johnson |
| Given Name | Louisa |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
St.-John-The-Baptist-County, Louisiana
Daughter, age 12
St.-John-The-Baptist-County, Louisiana · implied b. ~1928 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Lois |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | Reserve |
| 1935 Residence (County) | St. John |
| 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 Louisa Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Louisa Johnson
Daughter · 1930 · age 2 · b. ~1928 · Louisiana
★ You are viewing this record
Sibling
Bartholemy Johnson
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eliza Johnson
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Johnson
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Viola Johnson
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jesse Johnson
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eddie Johnson
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Johnson
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clarence Johnson
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jimmie Johnson
Sibling · 1930 · 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
1930 US Federal Census — St John, Louisiana
Open full size
1930 US Federal Census — St John, Louisiana
Page Contents
50 people indexed on this census page (ia:1930:15thcensus817unit:0302)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Alexis Smith | 45 | Head | Laborer | Louisiana |
| 52 | Eve Smith | 42 | Wife | — | Louisiana |
| 53 | Bartholemy Johnson | 47 | Head | Laborer | Louisiana |
| 54 | Laura Johnson | 42 | Wife | — | Louisiana |
| 55 | Jesse Johnson | 23 | Son | Laborer | Louisiana |
| 56 | Jimmie Johnson | 18 | Son | Laborer | Louisiana |
| 57 | Frank Johnson | 17 | Son | Laborer | Louisiana |
| 58 | Clarence Johnson | 13 | Son | — | Louisiana |
| 59 | Eliza Johnson | 11 | Daughter | — | Louisiana |
| 60 | Bartholemy Jr. Johnson | 10 | Son | — | Louisiana |
| 61 | Arthur Johnson | 8 | Son | — | Louisiana |
| 62 | Viola Johnson | 5 | Daughter | — | Louisiana |
| 63 | Eddie Johnson | 3 | Son | — | Louisiana |
| 64 | Louisa Johnson THIS PERSON | 2 | Daughter | — | Louisiana |
| 65 | Eliza Lanamont | 62 | Mother-in-law | — | Louisiana |
| 66 | Evans Brignac | 21 | Head | Laborer | Louisiana |
| 67 | Hilda Brignac | 19 | Wife | — | Louisiana |
| 68 | Simonis Brignac | 0 | Son | — | Louisiana |
| 69 | Denis Gravois | 35 | Head | Teacher | Louisiana |
| 70 | Iola Gravois | 25 | Wife | — | Louisiana |
| 71 | Denis Gravois | 5 | Son | — | Louisiana |
| 72 | Gloria Gravois | 2 | Daughter | — | Louisiana |
| 73 | Walter Gravois | 0 | Son | — | Louisiana |
| 74 | George Webre | 56 | Head | Overseer | Louisiana |
| 75 | Emma Webre | 54 | Wife | — | Louisiana |
| 76 | Noelie Webre | 26 | Daughter | — | Louisiana |
| 77 | Isaac Webre | 24 | Son | Laborer | Louisiana |
| 78 | Edwin Webre | 20 | Son | Freight Carrier | Louisiana |
| 79 | Edgar Webre | 17 | Son | Freight Carrier | Louisiana |
| 80 | Odell Webre | 14 | Son | — | Louisiana |
| 81 | Adelard Webre | 10 | Son | — | Louisiana |
| 82 | Elias Victor | 40 | Head | Laborer | Louisiana |
| 83 | Gene Victor | 30 | Wife | — | Louisiana |
| 84 | Rosanna Victor | 12 | Daughter | — | Louisiana |
| 85 | Marguerite Victor | 10 | Daughter | — | Louisiana |
| 86 | Regina Victor | 6 | Daughter | — | Louisiana |
| 87 | Bonita Victor | 5 | Daughter | — | Louisiana |
| 88 | Florida Victor | 1 | Daughter | — | Louisiana |
| 89 | Irving Fifi | 30 | Head | Laborer | Louisiana |
| 90 | Laurynze Fifi | 26 | Wife | — | Louisiana |
| 91 | Alvin Fifi | 1 | Son | — | Louisiana |
| 92 | Rene Keller | 43 | Head | Blacksmith | Louisiana |
| 93 | Agnes Keller | 43 | Wife | — | Louisiana |
| 94 | May Keller | 20 | Daughter | Housework | Louisiana |
| 95 | Norris Keller | 19 | Son | Laborer | Louisiana |
| 96 | Harold Keller | 17 | Son | Laborer | Louisiana |
| 97 | Beulah Keller | 15 | Daughter | — | Louisiana |
| 98 | Richard Keller | 6 | Son | — | Louisiana |
| 99 | Clarence Perez | 29 | Head | Laborer | Louisiana |
| 100 | Josepha Perez | 25 | Wife | — | Louisiana |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)