JH
John Hart — 1920 US Census Record
Model Tree available1920 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this John Hart across the 1900, 1910 and 1920 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed), with identified parents Bridget & Timothy — first a son (b.~1899), then head of a 3-person household.
Age 21
b. ~1899
Male
Son
Born: Massachusetts
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Suffolk, Massachusetts |
| Surname | Hart |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Machinist |
| Industry | Machine shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Machinist |
| Township / Ward | City Of Boston |
| 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 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Hart | Head | — | 46 | ~1874 |
| Michael Sullivan | Other | — | 26 | ~1894 |
| John Hart | Son | — | 21 | ~1899 |
Census Appearances
1900
Suffolk, Massachusetts
Son, age 1
Suffolk, Massachusetts · implied b. ~1899 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Birth Month | Jan |
| Birth Year | 1899 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1910
Suffolk, Massachusetts
Son, age 11
Suffolk, Massachusetts · implied b. ~1899 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Suffolk, Massachusetts
Son, age 21
Suffolk, Massachusetts · implied b. ~1899 — 3 household members
| Surname | Hart |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Machinist |
| Industry | Machine shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 John Hart across 3 US Census years (1900, 1910 and 1920) in Suffolk, Massachusetts, using XGBoost record linkage. Identified parents: mother Bridget Hart (~0.92 confidence) and father Timothy Hart (~0.92 confidence) and mother Elizabeth Hart (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Bridget Hart
b. ~1869
Source mother
● Household
· direct · ~0.92
Father
Timothy Hart
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Hart
b. ~1874
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Hart
Son · 1920 · age 21 · 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
1920 US Federal Census — Suffolk, Massachusetts
Open full size
1920 US Federal Census — Suffolk, Massachusetts
Page Contents
10 people indexed on this census page (ia:1920:14thcensusofpopu736unit:0652)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Louis Dugant | 31 | Lodger | Head Waiter | West Indies |
| 52 | Elizabeth Hart | 46 | Head | — | Ireland |
| 53 | John Hart THIS PERSON | 21 | Son | Machinist | Massachusetts |
| 54 | Michael Sullivan | 26 | Nephew | Fireman | Ireland |
| 55 | John Burke | 44 | Head | Machinist | Ireland |
| 56 | Catherine Burke | 40 | Wife | — | Ireland |
| 57 | Athena Spiliakos | 38 | Head | Prop. | Greece |
| 58 | George Georgoulis | 20 | Lodger | Prop. | Greece |
| 59 | John Daily | 27 | Lodger | Carpenter | Lithuania |
| 60 | Edgar Campbell | 30 | Head | Shipper | Maine |
Pedigree Summary
John
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 1920 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)