FJ
Florence Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Florence Johnson across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Frank & Hjalmar — first a daughter (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Johnson |
| Given Name | Florence |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Braddock Boro |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 954 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Stenographer |
| Township / Ward | Braddock Boro |
| Est. Birth Year | ~1918 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Florence | Age | Birth yr |
|---|---|---|---|---|
| Joan Johnson | Daughter | — | 10 | ~1930 |
| Florence Johnson | Daughter | — | 22 | ~1918 |
| Hjalmar Johnson | Head | — | 55 | ~1885 |
| Anna Johnson | Other | — | 73 | ~1867 |
| Elvira Johnson | Spouse | — | 47 | ~1893 |
Census Appearances
1920
Allegheny, Pennsylvania
Daughter, age 1
Allegheny, Pennsylvania · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Florence |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Daughter, age 11
Allegheny, Pennsylvania · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Florence L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Daughter, age 22
Allegheny-County, Pennsylvania · implied b. ~1918 — 5 household members
| Surname | Johnson |
| Given Name | Florence |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Braddock Boro |
| 1935 Residence (County) | Allegheny |
| Occupation | Stenographer |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 954 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Florence Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Johnson (~0.92 confidence) and father Hjalmar Johnson (~0.92 confidence) and mother Elvira Johnson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Johnson
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Hjalmar Johnson
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Elvira Johnson
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Florence Johnson
Daughter · 1940 · age 22 · b. ~1918 · Pennsylvania
★ You are viewing this record
Sibling
Joan Johnson
Sibling · 1940 · age 10
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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03413-00085)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Retrow, William, Jr Tetrow | 10 | Son | — | Pennsylvania |
| 2 | Hughes, Mary Tetrow | 11 | Cousin | — | Pennsylvania |
| 3 | Hughes, Orville Tetrow | 24 | Brother | Store Clerk | Pennsylvania |
| 4 | Morgan, Ruth Tetrow | 35 | Lodger | Office Clerk | Pennsylvania |
| 5 | Hjalmar Johnson | 55 | Head | Engineer | Sweden |
| 6 | Elvira Johnson | 47 | Wife | — | Sweden |
| 7 | Florence Johnson THIS PERSON | 22 | Daughter | Stenographer | Pennsylvania |
| 8 | Joan Johnson | 10 | Daughter | — | Pennsylvania |
| 9 | Anna Johnson | 73 | Mother-in-law | — | Sweden |
| 10 | George Winwood | 51 | Head | Boiler Maker | England |
| 11 | Ruth Winwood | 45 | Wife | — | Pennsylvania |
| 12 | Raymond Winwood | 18 | Son | — | Pennsylvania |
| 13 | George E. Winwood | 12 | Son | — | Pennsylvania |
| 14 | Peter Gardner | 50 | Head | Fireman | New Jersey |
| 15 | Mary Gardner | 47 | Wife | — | Pennsylvania |
| 16 | Peter, Jr. Gardner | 22 | Son | Radio Operator | Pennsylvania |
| 17 | Nicol Jameson | 26 | Head | Truck Driver | Scotland |
| 18 | Rita Jameson | 22 | Wife | — | Pennsylvania |
| 19 | Nicolette Jameson | 2 | Daughter | — | Pennsylvania |
| 21 | Helen B. Wynn | 50 | Head | — | Pennsylvania |
| 22 | Henry Corey Wynn | 22 | Son | — | Pennsylvania |
| 23 | Burse Jones | 53 | Head | Clerk | Pennsylvania |
| 24 | Roy Jones | 49 | Brother | Laborer | Pennsylvania |
| 25 | Clarence Jones | 44 | Brother | Engineer | Pennsylvania |
| 26 | Rose Jones | 75 | Mother | — | Pennsylvania |
| 27 | Ida Clarke | 70 | Aunt | Housework | Pennsylvania |
| 28 | Marie Lucas | 72 | Head | — | Germany |
| 29 | William C. Lucas | 35 | Son | Teller | Pennsylvania |
| 30 | Margaret Griggs | 40 | Daughter | Office Clerk | Pennsylvania |
| 31 | Grace Lucas | 49 | Daughter | Office Clerk | Pennsylvania |
| 32 | Delbert Griggs | 14 | Son | — | Pennsylvania |
| 33 | Shirley Griggs | 10 | Daughter | — | Pennsylvania |
| 34 | Earl Law | 58 | Head | Laborer | Pennsylvania |
| 35 | Ella Law | 61 | Wife | — | Pennsylvania |
| 36 | L. G. Dimond | 54 | Head | Locomotive Fireman | Pennsylvania |
| 37 | Ethel Dimond | 48 | Wife | — | Pennsylvania |
| 38 | James L. Dimond | 11 | Son | — | Pennsylvania |
| 39 | Frances J. Dimond | 9 | Daughter | — | Pennsylvania |
| 40 | Solomon Law | 84 | Head | — | Pennsylvania |
Pedigree Summary
Florence + 1 sibling
Gen 1 · 3 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)