FJ
Florence Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Florence Johnson across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Joseph & Marie — first a daughter (b.~1902), then head of a 4-person household.
Age 38
b. ~1902
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Johnson |
| Given Name | Florence |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden city |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Telephone company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1350 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Stenographer |
| Township / Ward | Malden City |
| Est. Birth Year | ~1902 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Florence | Age | Birth yr |
|---|---|---|---|---|
| Florence Johnson | Daughter | — | 38 | ~1902 |
| Dorothy Johnson | Daughter | — | 25 | ~1915 |
| Sven Johnson | Head | — | 72 | ~1868 |
| Marie Johnson | Spouse | — | 74 | ~1866 |
Census Appearances
1920
Middlesex, Massachusetts
Daughter, age 17
Middlesex, Massachusetts · implied b. ~1903 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Florence E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Clerk |
| Industry | Tin Ware Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Daughter, age 27
Middlesex, Massachusetts · implied b. ~1903 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Florence |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Twister |
| Industry | Woolen Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Daughter, age 38
Middlesex-County, Massachusetts · implied b. ~1902 — 4 household members
| Surname | Johnson |
| Given Name | Florence |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden city |
| 1935 Residence (County) | Middlesex |
| Occupation | Stenographer |
| Industry | Telephone company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1350 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Joseph Johnson (~0.92 confidence) and mother Marie Johnson (~0.92 confidence) and mother Annie Johnson (~0.92 confidence) and father Sven Johnson (~0.92 confidence) and mother Elizabeth Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Joseph Johnson
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Marie Johnson
b. ~1866
Source mother
● Household
· direct · ~0.92
Mother
Annie Johnson
b. ~1867
Source mother
● Household
· direct · ~0.92
Father
Sven Johnson
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Johnson
b. ~1868
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Florence Johnson
Daughter · 1940 · age 38 · b. ~1902 · Massachusetts
★ You are viewing this record
Sibling
Dorothy Johnson
Sibling · 1940 · age 25
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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01609-00305)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Robert Gayton | 16 | Head | — | Massachusetts |
| 42 | Sven D Johnson | 72 | Head | — | Sweden |
| 43 | Marie Johnson | 74 | Wife | — | Sweden |
| 44 | Florence Johnson THIS PERSON | 38 | Daughter | Stenographer | Massachusetts |
| 45 | Dorothy Johnson | 25 | Daughter | — | Massachusetts |
| 46 | Wesley Johnson | 36 | Head | Salesman | Massachusetts |
| 47 | Alice Johnson | 37 | Wife | — | Massachusetts |
| 48 | Ralph Voltaire | 10 | Boarder | — | Massachusetts |
| 49 | Olaf S. Lindgren | 71 | Head | — | Sweden |
| 50 | Hanna Lindgren | 67 | Wife | — | Sweden |
| 51 | Oscar O. Lindgren | 42 | Son | — | Massachusetts |
| 52 | William F. Lindgren | 27 | Son | Shipper | Massachusetts |
| 53 | Walter E. Lindgren | 25 | Son | — | Massachusetts |
| 54 | Donald Carpenter | 13 | Grandson | — | Massachusetts |
| 55 | Frederick V. Anderson | 35 | Son-in-law | Salesman | Massachusetts |
| 56 | Ruth M. Anderson | 37 | Wife | — | Massachusetts |
| 57 | Joseph De Franco | 48 | Head | Laborer | Massachusetts |
| 58 | Rose De Franco | 37 | Wife | — | Massachusetts |
| 59 | William De Franco | 23 | Son | Worker | Massachusetts |
| 60 | Joseph De Franco | 20 | Son | New Writer | Massachusetts |
| 61 | Emma De Franco | 18 | Daughter | Houseworker | Massachusetts |
| 62 | Arthur De Franco | 15 | Son | — | Massachusetts |
| 63 | George A. Lawrence | 13 | Son | — | Massachusetts |
| 64 | Mary Lawrence | 13 | Daughter | — | Massachusetts |
| 65 | Charles Lawrence | 2 | Son | — | Massachusetts |
| 66 | Paul Lawrence | 1 | Son | — | Massachusetts |
| 67 | Edward Arsenault | 32 | Head | Laborer | Maine |
| 68 | Irene Arsenault | 30 | Wife | — | Massachusetts |
| 69 | Edward Arsenault | 12 | Son | — | Massachusetts |
| 70 | Ida Arsenault | 11 | Daughter | — | Massachusetts |
| 71 | John Arsenault | 6 | Son | — | Massachusetts |
| 72 | Albert Olsen | 71 | Head | — | Norway |
| 73 | Marie Olsen | 73 | Wife | — | Norway |
| 74 | Henry Johnson | 41 | Head | Collector | Massachusetts |
| 75 | Irene D. Johnson | 39 | Wife | Milliner | Massachusetts |
| 76 | Doris Johnson | 15 | Daughter | — | Massachusetts |
| 77 | Fred E. S. Perkins | 30 | Head | Underwriter | Pennsylvania |
| 78 | A. Beatrice Perkins | 26 | Wife | Stenographer | Canada-Eng |
| 79 | Robert S. Perkins | 5 | Son | — | Massachusetts |
| 80 | Peter E. Surette | 38 | Head | Auto Mechanic | Canada-French |
Pedigree Summary
Florence + 1 sibling
Gen 1 · 5 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)