FP
Fred Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mason-County, Michigan
Our Model Tree links this Fred Peterson across the 1920, 1930 and 1940 US Censuses in Mason-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1876), then head of a 4-person household.
Age 64
b. ~1876
Male
Head
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mason-County, Michigan |
| Surname | Peterson |
| Given Name | Fred L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Summit Township |
| Additional Details | |
| Occupation | farm |
| Industry | OA |
| Class of Worker | 0 |
| Highest Grade | No 4 |
| 1935 Residence | 72 |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Farm |
| Township / Ward | Summit Township |
| Est. Birth Year | ~1876 |
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 1940 census.
| Name | Relation to head | Relative to Fred | Age | Birth yr |
|---|---|---|---|---|
| Ruth Peterson | Daughter | — | 24 | ~1916 |
| Bessie Peterson | Spouse | — | 56 | ~1884 |
| Fred Peterson | Son | — | 15 | ~1925 |
| Fred Peterson | Head | — | 64 | ~1876 |
Census Appearances
1920
Mason, Michigan
Head, age 42
Mason, Michigan · implied b. ~1878 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Fred L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Michigan |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Mason, Michigan
Head, age 53
Mason, Michigan · implied b. ~1877 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Fred L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 27 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | Fruit Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 110 |
| Radio Set | R |
| Veteran | No |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Mason-County, Michigan
Head, age 64
Mason-County, Michigan · implied b. ~1876 — 4 household members
| Surname | Peterson |
| Given Name | Fred L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Summit Township |
| Occupation | farm |
| Industry | OA |
| Class of Worker | 0 |
| Highest Grade | No 4 |
| 1935 Residence | 72 |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Fred Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Fred Peterson
Head · 1940 · age 64 · b. ~1876 · Michigan
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Mason-County, Michigan
Open full size
1940 US Federal Census — Mason-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01788-00540)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lois Stewart | 10 | Daughter | — | Michigan |
| 42 | Jean Stewart | 8 | Daughter | — | Michigan |
| 43 | Laureen Stewart | 5 | Daughter | — | Michigan |
| 44 | Kate Stewart | 74 | Mother | — | Michigan |
| 45 | Maude Meisenheimer | 64 | Head | 0 | Michigan |
| 46 | Phillip Meisenheimer | 22 | Son | Farm | Michigan |
| 47 | Norma Meisenheimer | 21 | Daughter | — | Michigan |
| 48 | Marion Meisenheimer | 17 | Daughter | 0 | Michigan |
| 49 | Fred L. Peterson THIS PERSON | 64 | Head | Farm | Michigan |
| 50 | Bessie Peterson | 56 | Wife | 0 | Wisconsin |
| 51 | Ruth Peterson | 24 | Daughter | Public School | Michigan |
| 52 | Fred Jr. Peterson | 15 | Son | 0 | Michigan |
| 53 | Ray Peterson | 33 | Head | Farming | Michigan |
| 54 | Anna Peterson | 28 | Wife | Teaching | Iowa |
| 55 | Frank Sullivan | 85 | Head | 0 | Canada English |
| 56 | William E. Brown | 64 | Head | Farm Laborer | Michigan |
| 57 | Addie Brown | 59 | Wife | — | Michigan |
| 58 | Vernon Mcclain | 18 | Grandson | Farm Laborer | Michigan |
| 59 | Marguerite Mcclain | 16 | Granddaughter | — | Michigan |
| 60 | William Henningsen | 49 | Head | Watch Case Co. | Michigan |
| 61 | Anna Henningsen | 49 | Wife | 0 | Michigan |
| 62 | Carlson Henningsen | 16 | Daughter | 0 | Michigan |
| 63 | Lorraine Henningsen | 9 | Daughter | — | Michigan |
| 64 | William Christensen | 42 | Brother-in-law | — | Michigan |
| 65 | Lars Nielsen | 71 | Lodger | 0 | Denmark |
| 66 | Maurice Brown | 51 | Head | Truck Driver | Michigan |
| 67 | Beatrice Brown | 44 | Wife | — | Michigan |
| 68 | Ruth Ab. Brown | 19 | Daughter | — | Michigan |
| 69 | Richard J. Fitch | 70 | Head | Oa | Michigan |
| 70 | Mary K. Fitch | 67 | Wife | 0 | Denmark |
| 71 | Dorothy G. Fitch | 40 | Daughter | Public | Michigan |
| 72 | Casimer Puisis | 30 | Head | Farm Laborer | Illinois |
| 73 | Ethel Puisis | 19 | Wife | — | Kansas |
| 74 | Harold Fitch | 39 | Head | Own Farm | Michigan |
| 75 | Frances Fitch | 32 | Wife | 0 | Michigan |
| 76 | Mary Ellen Fitch | 9 | Daughter | — | Michigan |
| 77 | Harold James Fitch | 7 | Son | — | Michigan |
| 78 | Ruth Alice Fitch | 5 | Daughter | — | Michigan |
| 79 | Michael Fitch | 3 | Son | — | Michigan |
| 80 | Arthur Sheldon | 33 | Head | 0 | Canada English |
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)