JB
John Berg — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this John Berg across the 1920, 1930 and 1940 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1860), then head of a 4-person household.
Age 60
b. ~1860
Male
Head
Born: Sweden
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, Massachusetts |
| Surname | Berg |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Occupation | Millwright |
| Industry | Steam Railway |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | R |
| Birth Country | Sweden |
| Year of Naturalization | 1897 |
| Birthplace (normalized) | sweden |
| Occupation | Millwright |
| Township / Ward | Cambridge City |
| Est. Birth Year | ~1860 |
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 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Arthur Berg | Son | — | 25 | ~1895 |
| William Berg | Son | — | 27 | ~1893 |
| Lillian Berg | Daughter | — | 18 | ~1902 |
| John Berg | Head | — | 60 | ~1860 |
Census Appearances
1920
Middlesex, Massachusetts
Head, age 60
Middlesex, Massachusetts · implied b. ~1860 — 4 household members
| Surname | Berg |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Millwright |
| Industry | Steam Railway |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | R |
| Birth Country | Sweden |
| Year of Naturalization | 1897 |
| Birthplace (normalized) | sweden |
1930
Suffolk, Massachusetts
Other, age 71
Suffolk, Massachusetts · implied b. ~1859 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Berg |
| Given Name | John F. |
| Relationship to Head | father-in-law |
| Sex | M |
| Color / Race | White |
| Age | 71 |
| Marital Status | Widowed |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1882 |
| Age at First Marriage | 25 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | retired |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Suffolk-County, Massachusetts
Other, age 81
Suffolk-County, Massachusetts · implied b. ~1859 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Berg |
| Given Name | John |
| Relationship to Head | Father Law |
| Sex | M |
| Color / Race | White |
| Age | 81 |
| Marital Status | Widowed |
| Birthplace | Sweden |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | No |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 Berg across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Berg
Head · 1920 · age 60 · b. ~1860 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Middlesex, Massachusetts
Open full size
1920 US Federal Census — Middlesex, Massachusetts
Page Contents
15 people indexed on this census page (ia:1920:14thcensusofpopu708unit:1136)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lydia Aaron | 41 | Head | Salesman | Massachusetts |
| 2 | Lydia Aaron | 27 | Wife | — | Massachusetts |
| 3 | Lewis J. Aaron | 4 | Son | — | Massachusetts |
| 4 | Edmund N. Aaron | 8 | Son | — | Massachusetts |
| 5 | John J. Berg THIS PERSON | 60 | Head | Millwright | Sweden |
| 6 | William R. Berg | 27 | Son | Paymaster | Massachusetts |
| 7 | Arthur S. Berg | 25 | Son | Clerk | Massachusetts |
| 8 | Lillian C. C. Berg | 18 | Daughter | Stenographer | Massachusetts |
| 9 | Elie H. La Pierre | 61 | Head | Teacher | Connecticut |
| 10 | Hattie L. La Pierre | 60 | Wife | — | Massachusetts |
| 11 | Charles E. Robinson | 68 | Head | Manager | Massachusetts |
| 12 | Florence B. Robinson | 70 | Wife | — | Massachusetts |
| 13 | Violet B. Robinson | 31 | Daughter | Teacher | Massachusetts |
| 14 | Harold Fair | 24 | Head | — | New York |
| 15 | Henry J. Chirico | 31 | Head | Clergyman | Italy |
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)