PJ
Peter Johnson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Peter Johnson across the 1900, 1910, 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1864), then head of a 3-person household.
Age 66
b. ~1864
Male
Head
Born: Denmark
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Johnson |
| Given Name | Peter J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1882 |
| Age at First Marriage | 26 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Additional Details | |
| Occupation | Truck Driver |
| Industry | Retail Ice Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | R |
| Home Value / Rent | 31 |
| Radio Set | R |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Occupation | Truck Driver |
| Township / Ward | Woburn City |
| Est. Birth Year | ~1864 |
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 1930 census.
| Name | Relation to head | Relative to Peter | Age | Birth yr |
|---|---|---|---|---|
| Peter Johnson | Head | — | 66 | ~1864 |
| Bertha Johnson | Other | — | 67 | ~1863 |
| Henry Johnson | Son | — | 31 | ~1899 |
Census Appearances
1900
Middlesex, Massachusetts
Head, age 36
Middlesex, Massachusetts · implied b. ~1864 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Peter |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Denmark |
| Birth Month | Nov |
| Birth Year | 1864 |
| Year of Immigration | 1892 |
| Naturalization Status | Alien |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Teamster |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1910
Middlesex, Massachusetts
Head, age 45
Middlesex, Massachusetts · implied b. ~1865 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Peter |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Denmark |
| Years Married | 20 |
| Year of Immigration | 1892 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Teamster |
| Industry | Ice Team |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1920
Middlesex, Massachusetts
Head, age 55
Middlesex, Massachusetts · implied b. ~1865 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Peter G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Denmark |
| Year of Immigration | 1891 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Wagon Driver |
| Industry | Ice Company |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | R |
| Birth Country | Denmark |
| Year of Naturalization | 1905 |
| Birthplace (normalized) | denmark |
1930
Middlesex, Massachusetts
Head, age 66
Middlesex, Massachusetts · implied b. ~1864 — 3 household members
| Surname | Johnson |
| Given Name | Peter J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1882 |
| Age at First Marriage | 26 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Truck Driver |
| Industry | Retail Ice Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | R |
| Home Value / Rent | 31 |
| Radio Set | R |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
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 Peter Johnson across 4 US Census years (1900, 1910, 1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Peter Johnson
Head · 1930 · age 66 · b. ~1864 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel931:0739)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Lally | 5 | Son | — | Massachusetts |
| 2 | Catherine M Macdonald | 42 | Head-H | — | New Hampshire |
| 3 | Catherine M Macdonald | 18 | Daughter | Box Maker | Rhode Island |
| 4 | Harold W Macdonald | 12 | Son | — | Massachusetts |
| 5 | Dorothy M Macdonald | 10 | Daughter | — | Massachusetts |
| 6 | Gladys R Macdonald | 8 | Daughter | — | Massachusetts |
| 7 | Raymond W Macdonald | 5 | Son | — | Massachusetts |
| 8 | Winfield L Garry | 23 | Boarder | Manager | Massachusetts |
| 9 | Wilfred S Preston | 23 | Head | Laborer | Massachusetts |
| 10 | Irene J Preston | 20 | Wife-H | — | New York |
| 11 | Peter J Johnson THIS PERSON | 66 | Head | Truck Driver | Denmark |
| 12 | Bertha Johnson | 67 | Wife-H | — | Denmark |
| 13 | Henry C Johnson | 31 | Son | Truck Driver | Massachusetts |
| 14 | Charles D Burke | 37 | Head | Machine Operator | Massachusetts |
| 15 | Irene G Burke | 40 | Wife-H | — | Massachusetts |
| 16 | John E Burke | 8 | Son | — | Illinois |
| 17 | Mary Burke | 6 | Daughter | — | Georgia |
| 18 | Louis J Brima | 52 | Head | Decorator | Canada-English |
| 19 | Annie A Brima | 44 | Wife-H | — | Massachusetts |
| 20 | Josephine R Brima | 18 | Daughter | Lacquerer | Massachusetts |
| 21 | Louis J Brima | 17 | Son | Machine Operator | Massachusetts |
| 22 | John P Brima | 15 | Son | — | Massachusetts |
| 23 | William J Brima | 12 | Son | — | Massachusetts |
| 24 | Anthony J Brima | 10 | Son | — | Massachusetts |
| 25 | Fidella Brima | 7 | Daughter | — | Massachusetts |
| 26 | Leon J Brima | 5 | Son | — | New Hampshire |
| 27 | John F Flaherty | 30 | Head | Foreman | Massachusetts |
| 28 | Catherine E Flaherty | 28 | Wife-H | — | Massachusetts |
| 29 | Barbara F Flaherty | 5 | Daughter | — | Massachusetts |
| 30 | John F Flaherty | 2 | Son | — | Massachusetts |
| 31 | Robert J Flaherty | 0 | Son | — | Massachusetts |
| 32 | Delia | 48 | Aunt | Forelady | Massachusetts |
| 33 | Amado Chester | 32 | Head | Express Driver | Italy |
| 34 | Aida G Chester | 26 | Wife-H | — | England |
| 35 | Anna G Chester | 4 | Daughter | — | Massachusetts |
| 36 | Eleanor R Chester | 1 | Daughter | — | Massachusetts |
| 37 | Coleman J Flaherty | 49 | Head | Machinist | Massachusetts |
| 38 | Mary E Flaherty | 55 | Sister-H | Laundress | Massachusetts |
| 39 | Charles D Barton | 39 | Head | Nurse | Massachusetts |
| 40 | Emma Barton | 37 | Wife-H | Machine Operator | Massachusetts |
| 41 | Charles E Jr Barton | 17 | Son | — | Massachusetts |
| 42 | Margaret Barton | 13 | Daughter | — | Massachusetts |
| 43 | Catherine Carroll | 73 | Mother-in-law | — | Irish Free State |
| 44 | Thomas J Carroll | 39 | Brother-in-law | Hand Shaver | Irish Free State |
| 45 | John L Tomrose | 51 | Head | Machinist | Sweden |
| 46 | Anna S Tomrose | 48 | Wife-H | — | Sweden |
| 47 | Michael J Foley | 59 | Head | Laborer | Massachusetts |
| 48 | Annie E Foley | 46 | Wife-H | — | Irish Free State |
| 49 | Maynard F Bradford | 42 | Head | Mechanic | Maine |
| 50 | Minnie S Bradford | 47 | Wife-H | — | Maine |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)