HP
Harold Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Erie-County, Pennsylvania
Our Model Tree links this Harold Peterson across the 1920, 1930 and 1940 US Censuses in Erie-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Alfred & Alfred — first a head (b.~1905), then head of a 3-person household.
Age 35
b. ~1905
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Erie-County, Pennsylvania |
| Surname | Peterson |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Millcreek |
| 1935 Residence (County) | Erie |
| Additional Details | |
| Occupation | Radio Service |
| Industry | Own Business |
| Class of Worker | OA |
| Hours Worked | 30 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Radio Service |
| Township / Ward | Millcreek |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Alice Peterson | Spouse | — | 27 | ~1913 |
| Jeanne Peterson | Daughter | — | 5 | ~1935 |
| Harold Peterson | Head | — | 35 | ~1905 |
Census Appearances
1920
Erie, Pennsylvania
Son, age 15
Erie, Pennsylvania · implied b. ~1905 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Harold |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Erie, Pennsylvania
Son, age 25
Erie, Pennsylvania · implied b. ~1905 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Erie-County, Pennsylvania
Head, age 35
Erie-County, Pennsylvania · implied b. ~1905 — 3 household members
| Surname | Peterson |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Millcreek |
| 1935 Residence (County) | Erie |
| Occupation | Radio Service |
| Industry | Own Business |
| Class of Worker | OA |
| Hours Worked | 30 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alfred Peterson (~0.92 confidence) and father Alfred Peterson (~0.92 confidence) and mother Jennie Peterson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alfred Peterson
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Alfred Peterson
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Jennie Peterson
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Peterson
Head · 1940 · age 35 · b. ~1905 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Erie-County, Pennsylvania
Open full size
1940 US Federal Census — Erie-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03501-00113)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Katherine Stager | 76 | Head | — | Pennsylvania |
| 42 | Frederick Stager | 32 | Son | Repairman | Pennsylvania |
| 43 | Clara Kelley | 55 | Daughter | Seamstress | Pennsylvania |
| 44 | Henry Littbird | 56 | Head | Moulder | New York |
| 45 | Alma Littbird | 54 | Wife | — | Pennsylvania |
| 46 | Eugene Kling | 25 | Head | Tool Maker | Pennsylvania |
| 47 | Miriam Kling | 22 | Wife | — | Pennsylvania |
| 48 | Charles Phillips | 44 | Head | Roofer | Pennsylvania |
| 49 | Mildred Phillips | 43 | Wife | — | Pennsylvania |
| 50 | Charles Aver | 18 | Step-son | Roofer | Pennsylvania |
| 51 | Lilla Belle Phillips | 12 | Daughter | — | Pennsylvania |
| 52 | Martha Phillips | 10 | Daughter | — | Pennsylvania |
| 53 | Eleanor Phillips | 8 | Daughter | — | Pennsylvania |
| 54 | David Phillips | 2 | Son | — | Pennsylvania |
| 55 | Edward Hoehn | 33 | Head | Plumber | Pennsylvania |
| 56 | Helen Hoehn | 33 | Wife | — | Pennsylvania |
| 57 | Marjorie Hoehn | 12 | Daughter | — | Pennsylvania |
| 58 | Dolores Hoehn | 9 | Daughter | — | Pennsylvania |
| 59 | Joan Hoehn | 8 | Daughter | — | Pennsylvania |
| 60 | Jean Marie Hoehn | 6 | Daughter | — | Pennsylvania |
| 61 | Mother Thesa | 73 | Mother | — | Germany |
| 62 | Clyde W Morgan | 48 | Head | Chauffeur | Pennsylvania |
| 63 | Maude Morgan | 47 | Wife | — | Pennsylvania |
| 64 | Richard Mayer | 24 | Head | Cutting Machine Operator | Pennsylvania |
| 65 | Mary Ann Mayer | 22 | Wife | — | Florida |
| 66 | Joan Mayer | 1 | Daughter | — | Pennsylvania |
| 67 | Frank Fiesler | 75 | Head | — | Pennsylvania |
| 68 | Katherine Fiesler | 56 | Wife | — | Pennsylvania |
| 69 | John B Pielmeier | 56 | Head | Carpenter Helper | Germany |
| 70 | Henry Rieger | 50 | Head | Laborer | Pennsylvania |
| 71 | Hazel Rieger | 51 | Wife | — | Pennsylvania |
| 72 | Ralph Rieger | 19 | Son | Laborer | Pennsylvania |
| 73 | Harold Maynard | 37 | Head | Boatsman | New York |
| 74 | Virginia Maynard | 30 | Wife | — | Michigan |
| 75 | William Maynard | 12 | Son | — | Michigan |
| 76 | Delores Maynard | 9 | Daughter | — | Michigan |
| 77 | Cora Maynard | 66 | Head | Laborer | New York |
| 78 | Harold Peterson THIS PERSON | 35 | Head | Radio Service | Pennsylvania |
| 79 | Alice Peterson | 27 | Wife | — | Pennsylvania |
| 80 | Jeanne Peterson | 5 | Daughter | — | Pennsylvania |
Pedigree Summary
Harold
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 1940 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)