WJ
Warren Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Warren Johnson across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Oscar & Oscar — first a son (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Johnson |
| Given Name | Warren S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden city |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Engineer |
| Industry | Oil Shipping Co |
| Class of Worker | PW |
| Hours Worked | 6 |
| Income (1939) | 1325 |
| Highest Grade | Hs 4-3 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Engineer |
| Township / Ward | Malden City |
| Est. Birth Year | ~1914 |
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 Warren | Age | Birth yr |
|---|---|---|---|---|
| Oscar Johnson | Head | — | 48 | ~1892 |
| Edwin Johnson | Son | — | 20 | ~1920 |
| Anna Johnson | Spouse | — | 53 | ~1887 |
| Warren Johnson | Son | — | 26 | ~1914 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 6
Middlesex, Massachusetts · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Warren S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 16
Middlesex, Massachusetts · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Warren |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 26
Middlesex-County, Massachusetts · implied b. ~1914 — 4 household members
| Surname | Johnson |
| Given Name | Warren S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden city |
| 1935 Residence (County) | Middlesex |
| Occupation | Engineer |
| Industry | Oil Shipping Co |
| Class of Worker | PW |
| Hours Worked | 6 |
| Income (1939) | 1325 |
| Highest Grade | Hs 4-3 |
| 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 Warren Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Oscar Johnson (~0.92 confidence) and father Oscar Johnson (~0.92 confidence) and father Oscar Johnson (~0.92 confidence) and mother Anna Johnson (~0.92 confidence) and mother Anna Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Oscar Johnson
b. ~1892
Source father
● Household
· direct · ~0.92
Father
Oscar Johnson
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Oscar Johnson
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Anna Johnson
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Anna Johnson
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Warren Johnson
Son · 1940 · age 26 · b. ~1914 · Massachusetts
★ You are viewing this record
Sibling
Edwin Johnson
Sibling · 1940 · age 20
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-t0627-01609-00349)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Alan Carter | 15 | Lodger | — | Massachusetts |
| 42 | James A Hiltz | 33 | Head | Sign Painting | Massachusetts |
| 43 | Thelma L Hiltz | 33 | Wife | — | Kentucky |
| 44 | Thelma R Hiltz | 10 | Daughter | — | Massachusetts |
| 45 | Carol M Hiltz | 9 | Daughter | — | Massachusetts |
| 46 | Helen M Hiltz | 5 | Daughter | — | Massachusetts |
| 47 | James A Jr. Hiltz | 6 | Son | — | Massachusetts |
| 48 | Henry R Davis | 50 | Head | Painter | New Hampshire |
| 49 | Edith M Davis | 45 | Wife | — | New Hampshire |
| 50 | Edythe M Davis | 17 | Daughter | Housework | Massachusetts |
| 51 | Eleanor R Davis | 14 | Daughter | — | Massachusetts |
| 52 | Marjorie E Paolin | 20 | Daughter | — | Massachusetts |
| 53 | Alfred L Paolin | 3 | Grandson | — | Massachusetts |
| 54 | George E Morgan | 66 | Brother-in-law | — | New Hampshire |
| 55 | Oscar S Johnson | 48 | Head | Machinist | Sweden |
| 56 | Anna M Johnson | 53 | Wife | — | Sweden |
| 57 | Warren S Johnson THIS PERSON | 26 | Son | Engineer | Massachusetts |
| 58 | Edwin F Johnson | 20 | Son | — | Massachusetts |
| 59 | Florence A Keefe | 59 | Head | — | Canada-English |
| 60 | Anna E Keefe | 30 | Daughter | Clerical | Massachusetts |
| 61 | Rose E Keefe | 32 | Daughter | Salesgirl | Massachusetts |
| 62 | Emil Anderson | 51 | Head | Finisher | Denmark |
| 63 | Rita Anderson | 52 | Wife | Baker | Denmark |
| 64 | Virginia F Anderson | 15 | Daughter | — | Massachusetts |
| 65 | Arlene M Smith | 5 | Lodger | — | Massachusetts |
| 66 | Brenda Moore | 12 | Lodger | — | Massachusetts |
| 67 | Raymond F Thomas | 40 | Head | Meter Inspector | Massachusetts |
| 68 | Margaret A Thomas | 32 | Wife | — | Massachusetts |
| 69 | Raymond F Thomas | 4 | Son | — | Massachusetts |
| 70 | Margaret J Thomas | 2 | Daughter | — | Massachusetts |
| 71 | Florence B Thomas | 1 | Daughter | — | Massachusetts |
| 72 | Gilbert S Wiltshire | 39 | Head | Oil Distributor | Canada-English |
| 73 | Mable C Wiltshire | 33 | Wife | — | Canada-English |
| 74 | Charles E Parlee | 43 | Head | Foreman | Canada-English |
| 75 | Marion V Parlee | 40 | Wife | — | Canada-English |
| 76 | Paul N Parlee | 4 | Son | — | Massachusetts |
| 77 | Nancy-Ann Parlee | 2 | Daughter | — | Massachusetts |
| 78 | Henry A Soderholm | 34 | Head | Delivery | Massachusetts |
| 79 | Evelyn L Soderholm | 28 | Wife | — | Massachusetts |
| 80 | Barbara A Soderholm | 8 | Daughter | — | Massachusetts |
Pedigree Summary
Warren + 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)