SJ
Sophia Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Navajo-County, Arizona
Our Model Tree links this Sophia Johnson across the 1930 and 1940 US Censuses in Navajo-County, Arizona (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 8-person household.
Age 12
b. ~1928
Female
Daughter
Born: Arizona
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Navajo-County, Arizona |
| Surname | Johnson |
| Given Name | Sophia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | American Indian |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Arizona |
| 1935 Residence (City) | Sup. D. #3 |
| 1935 Residence (County) | Navajo |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
| Township / Ward | Sup D 3 |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Sophia | Age | Birth yr |
|---|---|---|---|---|
| Joseph Johnson | Son | — | 18 | ~1922 |
| Benedict Johnson | Son | — | 16 | ~1924 |
| Carlos Johnson | Son | — | 3 | ~1937 |
| Zasu Johnson | Daughter | — | 1 | ~1939 |
| Sophia Johnson | Daughter | — | 12 | ~1928 |
| Lillian Johnson | Spouse | — | 37 | ~1903 |
| Felix Johnson | Son | — | 10 | ~1930 |
| Samuel Johnson | Head | — | 39 | ~1901 |
Census Appearances
1930
Navajo, Arizona
Daughter, age 2
Navajo, Arizona · implied b. ~1928 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Sophia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | American Indian |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Arizona |
| Father's Birthplace | Full |
| Mother's Birthplace | Apache |
| Occupation | none |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
1940
Navajo-County, Arizona
Daughter, age 12
Navajo-County, Arizona · implied b. ~1928 — 8 household members
| Surname | Johnson |
| Given Name | Sophia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | American Indian |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Arizona |
| 1935 Residence (City) | Sup. D. #3 |
| 1935 Residence (County) | Navajo |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
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 Sophia Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Sophia Johnson
Daughter · 1940 · age 12 · b. ~1928 · Arizona
★ You are viewing this record
Sibling
Joseph Johnson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Felix Johnson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Benedict Johnson
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Zasu Johnson
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carlos Johnson
Sibling · 1940 · age 3
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 — Navajo-County, Arizona
Open full size
1940 US Federal Census — Navajo-County, Arizona
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00110-01033)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Fred Duger | Dugen | 6 | Son | — | Arizona |
| 42 | Ponina Duger | Dugen | 4 | Daughter | — | Arizona |
| 43 | Enos Pina | 59 | Head | 0 | Arizona |
| 44 | Sylvester Taylor | 21 | Nephew | Laborer | Arizona |
| 45 | Ralph Nez | 50 | Head | Laborer | Arizona |
| 46 | Lucy Nez | 46 | Wife | — | Arizona |
| 47 | Evand Nez | 23 | Son | Laborer | Arizona |
| 48 | Charles Davis | 31 | Head | Laborer | Arizona |
| 49 | Stella Davis | 22 | Wife | — | Arizona |
| 50 | Wallace Davis | 5 | Son | — | Arizona |
| 51 | Lawrence Nez | 27 | Head | Laborer | Arizona |
| 52 | Lucinda Nez | 24 | Wife | 0 | Arizona |
| 53 | Charlotte Nez | 5 | Daughter | — | Arizona |
| 54 | Oraldo Nez | 3 | Son | — | Arizona |
| 55 | Ermin Nez | 1 | Son | — | Arizona |
| 56 | George Nagle | 51 | Head | Laborer | Arizona |
| 57 | Maude Nagle | 27 | Wife | — | Arizona |
| 58 | Feldridge Hammond | 24 | Brother in law | Laborer | Arizona |
| 59 | Frank Hammond | 20 | Brother in law | New Worker | Arizona |
| 60 | Leonard Castor | 48 | Head | Farmer | Arizona |
| 61 | Nora Castor | 41 | Wife | 0 | Arizona |
| 62 | Floyd Castor | 16 | Son | 0 | Arizona |
| 63 | Dolly Castor | 15 | Daughter | 0 | Arizona |
| 64 | Zina Castor | 13 | Daughter | — | Arizona |
| 65 | Rita Castor | 10 | Daughter | — | Arizona |
| 66 | Austin Castor | 7 | Son | — | Arizona |
| 67 | Alva Castor | 4 | Daughter | — | Arizona |
| 68 | Deta Castor | 2 | Daughter | — | Arizona |
| 69 | Glen Castor | 0 | Son | — | Arizona |
| 70 | Caa Jersey | 58 | Head | — | Arizona |
| 71 | Andrew Barlow | 43 | Head | Laborer | Arizona |
| 72 | Kate Barlow | 60 | Mother | — | Arizona |
| 73 | Samuel Johnson | 39 | Head | Laborer | Arizona |
| 74 | Lillian Johnson | 37 | Wife | — | Arizona |
| 75 | Joseph Johnson | 18 | Son | — | Arizona |
| 76 | Benedict Johnson | 16 | Son | School Project | Arizona |
| 77 | Sophia Johnson THIS PERSON | 12 | Daughter | — | Arizona |
| 78 | Felix Johnson | 10 | Son | — | Arizona |
| 79 | Carlos Johnson | 3 | Son | — | Arizona |
| 80 | Zasu Johnson | 1 | Daughter | — | Arizona |
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)