MJ
Margaret Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Margaret Johnson across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Abraham & Shahan — first a daughter (b.~1910), then head of a 5-person household.
Age 30
b. ~1910
Female
Daughter
Born: Rhode Island
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Johnson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Office |
| Class of Worker | PW |
| Hours Worked | 3 |
| Income (1939) | 900 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
| Occupation | Stenographer |
| Township / Ward | Boston |
| Est. Birth Year | ~1910 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Johnson | Daughter | — | 30 | ~1910 |
| Abraham Johnson | Head | — | 67 | ~1873 |
| Vahak Johnson | Son | — | 24 | ~1916 |
| Edward Johnson | Son | — | 18 | ~1922 |
| Margaret Johnson | Spouse | — | 57 | ~1883 |
Census Appearances
1920
Suffolk, Massachusetts
Daughter, age 10
Suffolk, Massachusetts · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| Father's Birthplace | Armenia |
| Mother's Birthplace | Armenia |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Armenian |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1930
Suffolk, Massachusetts
Daughter, age 21
Suffolk, Massachusetts · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| Father's Birthplace | Armenia |
| Mother's Birthplace | Armenia |
| Occupation | Stenographer |
| Industry | Coffin |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1940
Suffolk-County, Massachusetts
Daughter, age 30
Suffolk-County, Massachusetts · implied b. ~1910 — 5 household members
| Surname | Johnson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Occupation | Stenographer |
| Industry | Office |
| Class of Worker | PW |
| Hours Worked | 3 |
| Income (1939) | 900 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
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 Margaret Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Abraham Johnson (~0.92 confidence) and father Shahan Johnson (~0.92 confidence) and mother Margaret Johnson (~0.92 confidence) and mother Lucia Johnson (~0.92 confidence) and mother Lucy Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Abraham Johnson
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Shahan Johnson
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Margaret Johnson
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Lucia Johnson
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Lucy Johnson
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Johnson
Daughter · 1940 · age 30 · b. ~1910 · Massachusetts
★ You are viewing this record
Sibling
Vahak Johnson
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Johnson
Sibling · 1940 · 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
1940 US Federal Census — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01671-00155)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James Mcdonald | 38 | Head | Laborer | Ireland |
| 42 | Josephine Mcdonald | 31 | Wife | — | Ireland |
| 43 | Mary Mcdonald | 11 | Daughter | — | Mass |
| 44 | John Mcdonald | 8 | Son | — | Mass |
| 45 | Francis Mcdonald | 5 | Daughter | — | Mass |
| 46 | James Mcdonald | 3 | Son | — | Mass |
| 47 | Edward Gorman | 35 | Head | Fireman | Mass |
| 48 | Mary E. Gorman | 31 | Wife | — | Mass |
| 49 | Dorothy Gorman | 8 | Daughter | — | Mass |
| 50 | Edward Jr. Gorman | 7 | Son | — | Mass |
| 51 | John Fraser | 41 | Head | Cable Splicer | Canada |
| 52 | Margaret A. Fraser | 38 | Wife | — | Maine |
| 53 | Mary Fraser | 11 | Daughter | — | Mass |
| 54 | Genevieve Fraser | 10 | Daughter | — | Mass |
| 55 | Alice Fraser | 9 | Daughter | — | Mass |
| 56 | Frances Fraser | 7 | Daughter | — | Mass |
| 57 | John Fraser | 2 | Son | — | Mass |
| 59 | Mabel Alden | 64 | Head | — | Mass |
| 60 | George F. Tannam | 64 | Head | Collector | Mass |
| 61 | Rose V. Tannam | 62 | Wife | — | Mass |
| 62 | Francis Buckley | 76 | Head | — | Mass |
| 63 | Ella I. Snow | 74 | Sister | — | Mass |
| 64 | Mae Buckley | 73 | Head | — | Mass |
| 65 | Katherine Roache | 81 | Friend | — | Mass |
| 66 | Abraham Johnson | 67 | Head | Tailor | Armenia |
| 67 | Margaret Johnson | 57 | Wife | — | Armenia |
| 68 | Margaret Johnson THIS PERSON | 30 | Daughter | Stenographer | Rhode Island |
| 69 | Vahak Johnson | 24 | Son | Presser | Mass |
| 70 | Edward Johnson | 18 | Son | Photographer | Mass |
| 71 | Frank O. Grant | 53 | Head | Salesman | Mass |
| 72 | Elizabeth F. Grant | 41 | Wife | — | Mass |
| 73 | Theresa A. Grant | 16 | Daughter | — | Mass |
| 74 | Daniel J. Grant | 14 | Son | — | Mass |
| 75 | Francis Grant | 9 | Son | — | Mass |
| 76 | Margaret Grant | 5 | Daughter | — | Mass |
| 77 | Thomas Belache | 47 | Head | Operator | Scotland |
| 78 | Josephine Belache | 42 | Wife | — | Mass |
| 79 | Thomas Jr. Belache | 15 | Son | — | Mass |
| 80 | James F. Belache | 12 | Son | — | Mass |
Pedigree Summary
Margaret + 2 siblings
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)