HP
Harry Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Denver-County, Colorado
Our Model Tree links this Harry Peterson across the 1920, 1930 and 1940 US Censuses in Denver-County, Colorado (XGBoost, ~Confirmed), with identified parents Nels & Anna — first a head (b.~1895), then head of a 3-person household.
Age 45
b. ~1895
Male
Head
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Denver-County, Colorado |
| Surname | Peterson |
| Given Name | Harry M |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver City + County |
| Additional Details | |
| Occupation | City Fireman |
| Industry | City Fire Dept. |
| Class of Worker | GW |
| Hours Worked | 84 |
| Income (1939) | 2140 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | City Fireman |
| Township / Ward | Denver City County |
| Est. Birth Year | ~1895 |
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 Harry | Age | Birth yr |
|---|---|---|---|---|
| Ronald Peterson | Son | — | 2 | ~1938 |
| Harry Peterson | Head | — | 45 | ~1895 |
| Luella Peterson | Spouse | — | 38 | ~1902 |
Census Appearances
1920
Denver, Colorado
Son, age 25
Denver, Colorado · implied b. ~1895 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Harry Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Denmark |
| Occupation | Traffic Manager |
| Industry | Mercantile Co. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Denver, Colorado
Head, age 35
Denver, Colorado · implied b. ~1895 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Harry D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Colorado |
| Age at First Marriage | 25 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Norway |
| Occupation | Clerical work |
| Industry | food corp |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 40 |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Denver-County, Colorado
Head, age 45
Denver-County, Colorado · implied b. ~1895 — 3 household members
| Surname | Peterson |
| Given Name | Harry M |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver City + County |
| Occupation | City Fireman |
| Industry | City Fire Dept. |
| Class of Worker | GW |
| Hours Worked | 84 |
| Income (1939) | 2140 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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: father Nels Peterson (~0.92 confidence) and mother Anna Peterson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Nels Peterson
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Anna Peterson
b. ~1866
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Peterson
Head · 1940 · age 45 · b. ~1895 · Colorado
★ 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 — Denver-County, Colorado
Open full size
1940 US Federal Census — Denver-County, Colorado
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00487-00946)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Bernice Bader | 18 | Daughter | House Worker | Illinois |
| 42 | Lorrain Bader | 16 | Daughter | — | Illinois |
| 43 | Frank Bader | 14 | Son | — | Illinois |
| 44 | Richard Bader | 12 | Son | — | Illinois |
| 45 | Gaspern Bader | 11 | Son | — | Illinois |
| 46 | Vernon Charron | 37 | Head | Truck Driver | Michigan |
| 47 | Pearl Charron | 34 | Wife | — | Colorado |
| 48 | Vernon Jr Charron | 15 | Son | — | Colorado |
| 49 | Leona Charron | 13 | Daughter | — | Colorado |
| 50 | Edward Charron | 12 | Son | — | Colorado |
| 51 | Albert Friedmann | 66 | Head | — | Germany |
| 52 | Maggie Friedmann | 56 | Wife | — | Colorado |
| 53 | Loretto Friedmann | 34 | Son | Meat Cutter | Colorado |
| 54 | Bernard T Peppin | 26 | Head | Baker | Colorado |
| 55 | Emie Peppin | 25 | Wife | — | Colorado |
| 56 | Barbara Jean Peppin | 3 | Daughter | — | Colorado |
| 58 | Harry M Peterson THIS PERSON | 45 | Head | City Fireman | Colorado |
| 59 | Luella C Peterson | 38 | Wife | — | Ohio |
| 60 | Ronald B Peterson | 2 | Son | — | Colorado |
| 61 | James E Cook | 40 | Head | Insurance Agent | Illinois |
| 62 | Alice R Cook | 31 | Wife | — | Iowa |
| 63 | Everett Cook | 12 | Son | — | Illinois |
| 64 | Charles J Harcourt | 30 | Head | Certified Public Accountant | New Jersey |
| 65 | Doreen M Harcourt | 28 | Wife | — | England |
| 66 | Mary E Harcourt | 2 | Daughter | — | Colorado |
| 67 | Reuben C Lowe | 49 | Head | Post Office Clerk | Colorado |
| 68 | Margaret W Lowe | 49 | Wife | — | Colorado |
| 69 | Marjery Lowe | 20 | Daughter | Stenographer | Colorado |
| 70 | Floyd B Eloy | 30 | Head | Owner + Manager | Colorado |
| 71 | Margaret A Eloy | 28 | Wife | — | Pennsylvania |
| 72 | Marian E Eloy | 5 | Daughter | — | Colorado |
| 73 | Henry Verirdicchio | 55 | Head | Shoe Repairer | Italy |
| 74 | Pasqualina Verirdicchio | 51 | Wife | — | Italy |
| 75 | Flavio Verirdicchio | 23 | Son | Factory | Italy |
| 76 | Ermete Verirdicchio | 20 | Son | — | Italy |
| 77 | Adam Verirdicchio | 18 | Son | Servant | Italy |
| 78 | John F Mollot | 31 | Son-in-law | Plumber | Canada-French |
| 79 | Victoria M Mollot | 27 | Daughter | — | Missouri |
Pedigree Summary
Harry
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 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)