HJ
Harry Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Harry Johnson across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Steven & Frank — first a son (b.~1899), then head of a 3-person household.
Age 41
b. ~1899
Male
Son
Born: Vermont
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Johnson |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Single |
| Birthplace | Vermont |
| 1935 Residence (City) | Burlington |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Laborer |
| Industry | Contractor |
| Class of Worker | PW |
| Hours Worked | 4 |
| Income (1939) | 300 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Vermont |
| Birth Country | United States |
| Birthplace (normalized) | vermont |
| Occupation | Laborer |
| Township / Ward | Burlington |
| Est. Birth Year | ~1899 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harry | Age | Birth yr |
|---|---|---|---|---|
| Frank Johnson | Head | — | 70 | ~1870 |
| Harry Johnson | Son | — | 41 | ~1899 |
| Sadie Johnson | Spouse | — | 64 | ~1876 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 21
Middlesex, Massachusetts · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Harry F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Vermont |
| Father's Birthplace | Vermont |
| Mother's Birthplace | Vermont |
| Occupation | clerk |
| Industry | printing co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Vermont |
| Birth Country | United States |
| Birthplace (normalized) | vermont |
1930
Middlesex, Massachusetts
Son, age 31
Middlesex, Massachusetts · implied b. ~1899 — 27 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Harry E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Vermont |
| Father's Birthplace | Vermont |
| Mother's Birthplace | Vermont |
| Occupation | Laborer |
| Industry | Odd Jobs |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Vermont |
| Birth Country | United States |
| Birthplace (normalized) | vermont |
1940
Middlesex-County, Massachusetts
Son, age 41
Middlesex-County, Massachusetts · implied b. ~1899 — 3 household members
| Surname | Johnson |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Single |
| Birthplace | Vermont |
| 1935 Residence (City) | Burlington |
| 1935 Residence (County) | Middlesex |
| Occupation | Laborer |
| Industry | Contractor |
| Class of Worker | PW |
| Hours Worked | 4 |
| Income (1939) | 300 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Vermont |
| Birth Country | United States |
| Birthplace (normalized) | vermont |
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 Harry Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Steven Byam (~0.92 confidence) and father Frank Johnson (~0.92 confidence) and mother Sarah Johnson (~0.92 confidence) and mother Sadie Johnson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Steven Byam
b. ~1861
Source father
● Household
· direct · ~0.92
Father
Frank Johnson
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Sarah Johnson
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Sadie Johnson
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Johnson
Son · 1940 · age 41 · b. ~1899 · Massachusetts
★ You are viewing this record
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-t0627-01603-00574)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Anna Giabatista | 76 | Wife | — | Italy |
| 42 | Raymond Lefebvre | 37 | Head | Carpenter | Massachusetts |
| 43 | Emma Choquette | 68 | Aunt | — | Rhode Island |
| 44 | Amelia Shelton | 69 | Head | — | Massachusetts |
| 45 | John Moglia | 73 | Head | — | Italy |
| 46 | Lena Moglia | 43 | Daughter | — | Massachusetts |
| 47 | Esther Moglia | 37 | Daughter | Teacher | Massachusetts |
| 48 | Louise Moglia | 31 | Daughter | — | Massachusetts |
| 49 | Robert Moglia | 12 | S. Grand | — | New Jersey |
| 50 | John Moglia | 7 | S. Grand | — | New Jersey |
| 51 | Ernest Taylor | 35 | Head | Selector | Canada-English |
| 52 | Jane Taylor | 27 | Wife | — | Canada-English |
| 53 | Ernest Jr. Taylor | 9 | Son | — | Massachusetts |
| 54 | Charles Taylor | 7 | Son | — | Massachusetts |
| 55 | James Taylor | 5 | Son | — | Massachusetts |
| 56 | John Taylor | 5 | Son | — | Massachusetts |
| 57 | John Macallister | 40 | Head | Laborer | Canada-English |
| 58 | Ethel Macallister | 36 | Wife | — | Massachusetts |
| 59 | Louis Macallister | 12 | Son | — | Massachusetts |
| 60 | John Macallister | 13 | Son | — | Massachusetts |
| 61 | Ethel Macallister | 3 | Daughter | — | Massachusetts |
| 62 | Jean Macallister | 5 | Daughter | — | Massachusetts |
| 63 | Emil Muller | 59 | Head | Poultry Worker | Germany |
| 64 | Gladys Muller | 51 | Wife | — | England |
| 65 | Alfred Priestly | 37 | Head | Electrician | Massachusetts |
| 66 | Kenneth Priestly | 17 | Son | — | Massachusetts |
| 67 | Ernest Craven | 63 | Head | — | Massachusetts |
| 68 | Martha Craven | 70 | Wife | Secretary | Massachusetts |
| 69 | Frank Johnson | 70 | Head | — | Vermont |
| 70 | Sadie Johnson | 64 | Wife | — | Vermont |
| 71 | Harry Johnson THIS PERSON | 41 | Son | Laborer | Vermont |
| 72 | Aims Nichols | 69 | Head | — | Massachusetts |
| 73 | Charles Foster | 75 | Lodger | — | Massachusetts |
| 74 | Sarah Foster | 66 | Lodger | — | Massachusetts |
| 75 | Jeannette Mackenzie | 74 | Head | — | Canada-English |
| 76 | Ella Dodge | 75 | Lodger | — | Massachusetts |
| 77 | Charles Durocher | 82 | Head | — | Vermont |
| 78 | Katherine Durocher | 66 | Wife | — | Massachusetts |
| 79 | Edward Foster | 31 | Head | Truck Driver | Massachusetts |
| 80 | Myrtle Foster | 28 | Wife | — | Massachusetts |
Pedigree Summary
Harry
Gen 1 · 4 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)