HP
Harold Peterson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Worcester, Massachusetts
Our Model Tree links this Harold Peterson across the 1910, 1920 and 1930 US Censuses in Worcester, Massachusetts (XGBoost, ~Confirmed), with identified parents August & August — first a son (b.~1901), then head of a 4-person household.
Age 29
b. ~1901
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Worcester, Massachusetts |
| Surname | Peterson |
| Given Name | Harold G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Occupation | Asst Manager |
| Industry | Wholesale Garden Produce |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Asst Manager |
| Township / Ward | Worcester City |
| Est. Birth Year | ~1901 |
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 1930 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Esther Peterson | Daughter | — | 25 | ~1905 |
| Harold Peterson | Son | — | 29 | ~1901 |
| August Peterson | Head | — | 67 | ~1863 |
| Augusta Peterson | Spouse | — | 64 | ~1866 |
Census Appearances
1910
Worcester, Massachusetts
Son, age 7
Worcester, Massachusetts · implied b. ~1903 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Worcester, Massachusetts
Son, age 18
Worcester, Massachusetts · implied b. ~1902 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Harold A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Clerk |
| Industry | Automobile Dept |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Worcester, Massachusetts
Son, age 29
Worcester, Massachusetts · implied b. ~1901 — 4 household members
| Surname | Peterson |
| Given Name | Harold G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Asst Manager |
| Industry | Wholesale Garden Produce |
| Class of Worker | W |
| Can Read/Write | 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 Harold Peterson across 3 US Census years (1910, 1920 and 1930) in Worcester, Massachusetts, using XGBoost record linkage. Identified parents: father August Peterson (~0.92 confidence) and father August Peterson (~0.92 confidence) and father Peter Peterson (~0.92 confidence) and mother Augusta Peterson (~0.92 confidence) and mother Augusta Peterson (~0.92 confidence) and mother Emma Peterson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
August Peterson
b. ~1863
Source father
● Household
· direct · ~0.92
Father
August Peterson
b. ~1864
Source father
● Household
· direct · ~0.92
Father
Peter Peterson
b. ~1864
Source father
● Household
· direct · ~0.92
Mother
Augusta Peterson
b. ~1866
Source mother
● Household
· direct · ~0.92
Mother
Augusta Peterson
b. ~1866
Source mother
● Household
· direct · ~0.92
Mother
Emma Peterson
b. ~1871
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Peterson
Son · 1930 · age 29 · b. ~1901 · Massachusetts
★ You are viewing this record
Sibling
Esther Peterson
Sibling · 1930 · age 25
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
1930 US Federal Census — Worcester, Massachusetts
Open full size
1930 US Federal Census — Worcester, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel967:0373)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wallace J. Smalley | 52 | Head | Foreman | Maine |
| 2 | Clara M. Smalley | 53 | Wife | Homemaker | Maine |
| 3 | Ruth M. Smalley | 25 | Daughter | Stenographer | Massachusetts |
| 4 | Daniel J. Chapman | 60 | Head | Tower Man Telegraph | New York |
| 5 | Louisa M. Chapman | 51 | Wife | Homemaker | Massachusetts |
| 6 | Leslie W. Chapman | 21 | Son | — | Massachusetts |
| 7 | Chester J. Chapman | 16 | Son | — | Massachusetts |
| 8 | Harry L. Chapman | 12 | Son | — | Massachusetts |
| 9 | Richard W. Kittredge | 43 | Head | Machinist | Massachusetts |
| 10 | Louise F. Kittredge | 33 | Wife | Homemaker | Massachusetts |
| 11 | Richard H. Kittredge | 14 | Son | — | Massachusetts |
| 12 | Kenneth E. Kittredge | 13 | Son | — | Massachusetts |
| 13 | Shirley L. Kittredge | 11 | Daughter | — | Massachusetts |
| 14 | Robert R. Kittredge | 10 | Son | — | Massachusetts |
| 15 | Virginia H. Kittredge | 6 | Daughter | — | Massachusetts |
| 16 | Willard R. Kittredge | 3 | Son | — | Massachusetts |
| 17 | John A. Nichols | 40 | Head | Millwright | Illinois |
| 18 | Marion L. Nichols | 37 | Wife | Homemaker | New Hampshire |
| 19 | Barbara L. Nichols | 6 | Daughter | — | Massachusetts |
| 20 | Rita A. Nichols | 5 | Daughter | — | Massachusetts |
| 21 | Marion J. Nichols | 3 | Daughter | — | Massachusetts |
| 22 | John A. Jr. Nichols | 1 | Son | — | Massachusetts |
| 23 | Robert G. Nichols | 0 | Son | — | Massachusetts |
| 24 | Edgar J. Thomas | 44 | Head | Stock Clerk | England |
| 25 | Theresa B. Thomas | 45 | Wife | Homemaker | Irish Free State |
| 26 | William L. Thomas | 13 | Son | — | Massachusetts |
| 27 | Marie H. Thomas | 10 | Daughter | — | Massachusetts |
| 28 | Michael J. Thomas | 8 | Son | — | Massachusetts |
| 29 | Margaret T. Thomas | 5 | Daughter | — | Massachusetts |
| 30 | Gustaf A. Hallen | 69 | Head | Carpenter | Sweden |
| 31 | Rudolph O. Hallen | 30 | Son | Contractor | Sweden |
| 32 | Ruth K. Hallen | 25 | Daughter | — | Sweden |
| 33 | Charles F. Mccarthy | 54 | Head | Watchman-Guard | Massachusetts |
| 34 | Mary M. Mccarthy | 49 | Wife | Homemaker | Canada English |
| 35 | Mildred M. Mccarthy | 21 | Daughter | Clerk In Filing Dept | Massachusetts |
| 36 | Edward G. Akeson | 38 | Head | Crane Oper. | Sweden |
| 37 | Annie M. Akeson | 32 | Wife | Lunch Room Helper | Sweden |
| 38 | Edith A. V. Akeson | 12 | Daughter | — | Sweden |
| 39 | Hanson Emil H. Akeson | 38 | Boarder | Mason | Sweden |
| 40 | Robert D. Reed | 30 | Head | Electric | Canada English |
| 41 | Delma J. Reed | 40 | Wife | Homemaker | Massachusetts |
| 42 | Wilson G. Rixford | 58 | Head | Machinist | Massachusetts |
| 43 | Mary A. Rixford | 59 | Wife | Homemaker | Scotland |
| 44 | Harry E. Bengtson | 30 | Head | Car Checker | Massachusetts |
| 45 | Elvira S. Bengtson | 29 | Wife | Homemaker | Vermont |
| 46 | Earl L. Bengtson | 1 | Son | — | Massachusetts |
| 47 | August Peterson | 67 | Head | — | Sweden |
| 48 | Augusta Peterson | 64 | Wife | Homemaker | Sweden |
| 49 | Harold G. Peterson THIS PERSON | 29 | Son | Asst Manager | Massachusetts |
| 50 | Esther Peterson | 25 | Daughter | Teacher | Massachusetts |
Pedigree Summary
Harold + 1 sibling
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
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)