JP
Joseph Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Madison-County, Montana
Our Model Tree links this Joseph Peterson across the 1920, 1930 and 1940 US Censuses in Madison-County, Montana (XGBoost, ~Confirmed), with identified parents Alexander & William — first a son (b.~1920), then head of a 11-person household.
Age 20
b. ~1920
Male
Son
Born: Montana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Madison-County, Montana |
| Surname | Peterson |
| Given Name | Joseph R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Montana |
| 1935 Residence (City) | Union |
| 1935 Residence (County) | Madison |
| Additional Details | |
| Occupation | Ranchhand |
| Industry | Ranch |
| Class of Worker | NP |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
| Occupation | Ranchhand |
| Township / Ward | Union |
| Est. Birth Year | ~1920 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| William Miles | Head | — | 36 | ~1904 |
| Pearl Miles | Daughter | — | 11 | ~1929 |
| Dorothy Miles | Daughter | — | 15 | ~1925 |
| Joseph Peterson | Son | — | 20 | ~1920 |
| Francis Miles | Daughter | — | 7 | ~1933 |
| John Miles | Son | — | 1 | ~1939 |
| Alice Peterson | Spouse | — | 46 | ~1894 |
| Evelyn Miles | Daughter | — | 12 | ~1928 |
| Alta Miles | Spouse | — | 33 | ~1907 |
| Raymond Peterson | Son | — | 18 | ~1922 |
| Alf Peterson | Other | — | 60 | ~1880 |
Census Appearances
1920
Madison, Montana
Son, age
Madison, Montana · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Joseph R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Montana |
| Mother's Birthplace | Montana |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1930
Madison, Montana
Son, age 10
Madison, Montana · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Joseph F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Montana |
| Mother's Birthplace | Montana |
| Can Read/Write | Yes |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1940
Madison-County, Montana
Son, age 20
Madison-County, Montana · implied b. ~1920 — 11 household members
| Surname | Peterson |
| Given Name | Joseph R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Montana |
| 1935 Residence (City) | Union |
| 1935 Residence (County) | Madison |
| Occupation | Ranchhand |
| Industry | Ranch |
| Class of Worker | NP |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
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 Joseph Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alexander Peterson (~0.92 confidence) and father William Miles (~0.92 confidence) and mother Alice Peterson (~0.92 confidence) and mother Alta Miles (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alexander Peterson
b. ~1882
Source father
● Household
· direct · ~0.92
Father
William Miles
b. ~1904
Source father
● Household
· direct · ~0.92
Mother
Alice Peterson
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Alta Miles
b. ~1907
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Peterson
Son · 1940 · age 20 · b. ~1920 · Montana
★ You are viewing this record
Sibling
Francis Miles
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Miles
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pearl Miles
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Miles
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Peterson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Miles
Sibling · 1940 · age 1
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
1940 US Federal Census — Madison-County, Montana
Open full size
1940 US Federal Census — Madison-County, Montana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02224-00222)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Walter L Sink | 62 | Head | Ranchhand | Virginia |
| 2 | Peter M Sink | 70 | Brother | Ranchhand | Virginia |
| 3 | Emerson T Bock | 52 | Head | Laborer | Wyoming |
| 4 | Ethel M Bock | 33 | Wife | Housewife | Wyoming |
| 5 | Elmer O Bock | 15 | Son | — | Montana |
| 6 | Emerson T Bock | 14 | Son | — | Montana |
| 7 | Eva A Bock | 11 | Daughter | — | Montana |
| 8 | Ernest T Bock | 6 | Son | — | Montana |
| 9 | Anna Smith | 79 | Head | Housewife | Eire |
| 10 | Joseph G Kenny | 30 | Head | Ranchhand | Idaho |
| 11 | Fay P Kenny | 31 | Wife | Housewife | Idaho |
| 12 | Robert B Kelly | 77 | Father | Rancher | Pennsylvania |
| 13 | Richard P Kelly | 44 | Son | Ranchhand | Montana |
| 14 | Albert E Stephens | 59 | Father | Rancher | Montana |
| 15 | Bettie Stephens | 36 | Wife | Housewife | Montana |
| 16 | Lorraine E Stephens | 14 | Daughter | — | Montana |
| 17 | Bettie A Stephens | 10 | Daughter | — | Montana |
| 18 | Perry Peck | 60 | Head | Rancher | Pennsylvania |
| 19 | William J Miles | 36 | Head | Rancher | Colorado |
| 20 | Alta M Miles | 33 | Wife | Housewife | Kansas |
| 21 | Dorothy M Miles | 15 | Daughter | — | Kansas |
| 22 | Evelyn L Miles | 12 | Daughter | — | Montana |
| 23 | Pearl E Miles | 11 | Daughter | — | Montana |
| 24 | Francis A Miles | 7 | Daughter | — | Montana |
| 25 | John W Miles | 1 | Son | — | Montana |
| 26 | Alf Peterson | 60 | Father | Rancher | Montana |
| 27 | Alice E Peterson | 46 | Wife | Housewife | Montana |
| 28 | Joseph R Peterson THIS PERSON | 20 | Son | Ranchhand | Montana |
| 29 | Raymond L Peterson | 18 | Son | — | Montana |
| 30 | Earl W Plague | 24 | Head | Truck Driver | Montana |
| 31 | Alice E Plague | 21 | Wife | Housewife | Montana |
| 32 | Ralph W Plague | 2 | Son | — | Montana |
| 33 | Andrew P Williams | 58 | Father | Rancher | Illinois |
| 34 | Mary W Williams | 53 | Wife | Housewife | Ohio |
| 35 | Henry W Williams | 26 | Son | Rancher | Montana |
| 36 | Mary E Williams | 24 | Daughter | Housewife | Montana |
| 37 | Charles M Mitzel | 72 | Head | Rancher | Montana |
| 38 | Esther Mitzel | 68 | Wife | Housewife | Montana |
| 39 | George K Tate | 53 | Hired hand | Hired Hand | Kansas |
| 40 | Ella Bunnyll | 55 | Head | Housewife | Montana |
Related Census Records
Pedigree Summary
Joseph + 6 siblings
Gen 1 · 4 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)