HP
Harry Peterson — 1920 US Census Record
Model Tree available1920 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Harry Peterson across the 1920, 1930 and 1940 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed), with identified parents Catherine & Catherine — first a son (b.~1905), then head of a 5-person household.
Age 15
b. ~1905
Male
Son
Born: Massachusetts
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, Massachusetts |
| Surname | Peterson |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Additional Details | |
| Occupation | Trimmer |
| Industry | Tannery |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Trimmer |
| Township / Ward | City Of Woburn |
| Est. Birth Year | ~1905 |
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 1920 census.
| Name | Relation to head | Relative to Harry | Age | Birth yr |
|---|---|---|---|---|
| Catherine Peterson | Head | — | 33 | ~1887 |
| Harry Peterson | Son | — | 15 | ~1905 |
| Arthur Peterson | Son | — | 7 | ~1913 |
| Caroline Peterson | Daughter | — | 11 | ~1909 |
| Neal Peterson | Son | — | 17 | ~1903 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 15
Middlesex, Massachusetts · implied b. ~1905 — 5 household members
| Surname | Peterson |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Trimmer |
| Industry | Tannery |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 25
Middlesex, Massachusetts · implied b. ~1905 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Petersen |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Truck Driver |
| Industry | General Trucking |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
Head, age 35
Middlesex-County, Massachusetts · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Henry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville (city) |
| 1935 Residence (County) | Middlesex |
| Occupation | Truck Driver |
| Industry | Transportation Co. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1820 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| 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 Harry Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Catherine Peterson (~0.92 confidence) and mother Catherine Petersen (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Catherine Peterson
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Catherine Petersen
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Peterson
Son · 1920 · age 15 · b. ~1905 · Massachusetts
★ You are viewing this record
Sibling
Caroline Peterson
Sibling · 1920 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Peterson
Sibling · 1920 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Neal Peterson
Sibling · 1920 · age 17
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
1920 US Federal Census — Middlesex, Massachusetts
Open full size
1920 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu720unit:1035)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Percy Bonnell | 30 | Head | Chauffeur | Massachusetts |
| 2 | Margaret Bonnell | 28 | Wife | — | Ireland |
| 3 | Granville Bonnell | 11 | Son | Helper | Massachusetts |
| 4 | Mary Bonnell | 13 | Daughter | — | Massachusetts |
| 5 | Dorothy Bonnell | 10 | Daughter | — | Massachusetts |
| 6 | Bernice Bonnell | 6 | Daughter | — | Massachusetts |
| 7 | James Daniel Bonnell | 31 | Brother | Trimmer | Ireland |
| 8 | Roy Bonnell | 31 | Head | Inspector | Massachusetts |
| 9 | Margaret Bonnell | 33 | Wife | — | Massachusetts |
| 10 | Ralph Bonnell | 11 | Son | — | Massachusetts |
| 11 | Harold Bonnell | 3 | Son | — | Massachusetts |
| 12 | Vincenzo Trimola | 34 | Head | Laborer | Greece |
| 13 | Cora Trimola | 25 | Wife | — | Greece |
| 14 | Alice Trimola | 12 | Daughter | — | Greece |
| 15 | Katherine Trimola | 11 | Daughter | — | Greece |
| 16 | Ernest Riedman | 43 | Head | Helper | Germany |
| 17 | Hedwig Riedman | 39 | Wife | — | Germany |
| 18 | Herman Riedman | 17 | Son | Laborer | Germany |
| 19 | Hedwig Riedman | 13 | Daughter | — | Germany |
| 20 | Clara Riedman | 11 | Daughter | — | Canada |
| 21 | Joseph R Manning | 55 | Head | Trimmer | Massachusetts |
| 22 | Thomas Manning | 50 | Boarder | Currier | Ireland |
| 23 | Joseph Finnegan | 52 | Boarder | Trimmer | Massachusetts |
| 24 | William Cafferty | 40 | Boarder | Butcher | Massachusetts |
| 25 | Joseph Cafferty | 42 | Head | Shoemaker | Massachusetts |
| 26 | Minnie Cafferty | 40 | Wife | — | Massachusetts |
| 27 | Joseph Cafferty | 19 | Son | Trimmer | Massachusetts |
| 28 | Mildred Cafferty | 17 | Daughter | — | Massachusetts |
| 29 | Helen Cafferty | 13 | Daughter | — | Massachusetts |
| 30 | Harold Cafferty | 11 | Son | — | Massachusetts |
| 31 | Patrick Cafferty | 10 | Son | — | Massachusetts |
| 32 | Agnes Cafferty | 9 | Daughter | — | Massachusetts |
| 33 | Edward Cafferty | 7 | Son | — | Massachusetts |
| 34 | Leo Cafferty | 5 | Son | — | Massachusetts |
| 35 | Virginia Cafferty | 3 | Daughter | — | Massachusetts |
| 36 | Walter Cafferty | 1 | Son | — | Massachusetts |
| 37 | John Muse | 32 | Head | Teamster | Massachusetts |
| 38 | Frances Muse | 26 | Wife | — | Massachusetts |
| 39 | Mary F Muse | 6 | Daughter | — | Massachusetts |
| 40 | John E Muse | 3 | Son | — | Massachusetts |
| 41 | Martha Colby | 33 | Boarder | — | New Hampshire |
| 42 | Frank Lansburg | 32 | Head | Machinist | Nova Scotia |
| 43 | Mary Lansburg | 26 | Wife | — | Massachusetts |
| 44 | Edward Beaton | 5 | Nephew | — | Massachusetts |
| 45 | Catherine Peterson | 33 | Head | Finisher | Denmark |
| 46 | Neal Peterson | 17 | Son | Chauffeur | Massachusetts |
| 47 | Harry Peterson THIS PERSON | 15 | Son | Trimmer | Massachusetts |
| 48 | Caroline Peterson | 11 | Daughter | — | Massachusetts |
| 49 | Arthur Peterson | 7 | Son | — | Massachusetts |
| 50 | Frederick E Eaton | 67 | Head | Inspector | Canada |
Related Census Records
Pedigree Summary
Harry + 3 siblings
Gen 1 · 2 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)