RC
Ralph Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Fillmore-County, Minnesota
Our Model Tree links this Ralph Clark across the 1920, 1930 and 1940 US Censuses in Fillmore-County, Minnesota (XGBoost, ~Confirmed) — first a head (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Fillmore-County, Minnesota |
| Surname | Clark |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Fountain |
| 1935 Residence (County) | Fillmore |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Farmer |
| Township / Ward | Fountain |
| Est. Birth Year | ~1914 |
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 Ralph | Age | Birth yr |
|---|---|---|---|---|
| Ralph Clark | Head | — | 26 | ~1914 |
| Marvin Clark | Son | — | 3 | ~1937 |
| Leon Clark | Son | — | ~1940 | |
| Evelyn Clark | Spouse | — | 23 | ~1917 |
Census Appearances
1920
Fillmore, Minnesota
Other, age 6
Fillmore, Minnesota · implied b. ~1914 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Ralph |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Fillmore, Minnesota
Son, age 15
Fillmore, Minnesota · implied b. ~1915 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Fillmore-County, Minnesota
Head, age 26
Fillmore-County, Minnesota · implied b. ~1914 — 4 household members
| Surname | Clark |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Fountain |
| 1935 Residence (County) | Fillmore |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Ralph Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ralph Clark
Head · 1940 · age 26 · b. ~1914 · Minnesota
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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 — Fillmore-County, Minnesota
Open full size
1940 US Federal Census — Fillmore-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01921-00272)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Andrew Knudslein|Knudstein | 48 | Head | Farm Work | Iowa |
| 42 | Clara Knudslein|Knudstein | 48 | Wife | House Wife | Iowa |
| 43 | Ronald Knudslein|Knudstein | 10 | Son | — | Minnesota |
| 44 | Amays|Amaya Knudslein|Knudstein | 9 | Daughter | — | Minnesota |
| 45 | E. H. Palmer | 77 | Head | Farmer | Minnesota |
| 46 | James Callan | 32 | Head | Farmer | Minnesota |
| 47 | Catherine Callan | 72 | Mother | House Work | Canada |
| 48 | Allene Callan | 38 | Sister | House Work | Minnesota |
| 49 | E. J. Raynolds|Reynolds | 32 | Head | Farm Hand | Wisconsin |
| 50 | Edith Raynolds|Reynolds | 26 | Wife | House Work | Minnesota |
| 51 | Phyllis Raynolds|Reynolds | 8 | Daughter | — | Minnesota |
| 52 | Ella Raynolds|Reynolds | 5 | Daughter | — | Minnesota |
| 53 | Jerry Raynolds|Reynolds | 1 | Son | — | Minnesota |
| 54 | W. R. Foster | 69 | Head | Farmer | Minnesota |
| 55 | Rufina Foster | 63 | Wife | House Wife | Minnesota |
| 56 | William Foster | 32 | Son | Farm Hand | Minnesota |
| 57 | Thomas Foster | 30 | Son | Farmer | Minnesota |
| 58 | Martin Marveon|Marveson | 59 | Head | Farmer | Minnesota |
| 59 | Sarah Marveon|Marveson | 58 | Wife | House Wife | Minnesota |
| 60 | Marvin Marveon|Marveson | 32 | Son | Farmer | Minnesota |
| 61 | Emil Eickhoff | 34 | Head | Farmer | Minnesota |
| 62 | Irene Eickhoff | 33 | Wife | House Wife | Minnesota |
| 63 | Donald Eickhoff | 11 | Son | — | Minnesota |
| 64 | Vergil Eickhoff | 9 | Son | — | Minnesota |
| 65 | Myrna Eickhoff | 3 | Daughter | — | Minnesota |
| 66 | Frank Meilkern|Melkern | 54 | Head | Farmer | Minnesota |
| 67 | Margaret Meilkern|Melkern | 56 | Wife | House Wife | Minnesota |
| 68 | Claude Kirvy|Kirvey | 58 | Hired Hand | Farm Hand | Nebraska |
| 69 | John Cummings | 64 | Head | Farmer | Minnesota |
| 70 | Ethel Cummings | 56 | Wife | House Wife | Minnesota |
| 71 | Duane Cummings | 25 | Son | Farm Work | Minnesota |
| 72 | John Knopke | 37 | Head | Stone Mason | Minnesota |
| 73 | Margaret Knopke | 32 | Wife | House Wife | Iowa |
| 74 | Lavern Knopke | 11 | Son | — | Minnesota |
| 75 | Kenny Knopke | 5 | Son | — | Minnesota |
| 76 | Arden Knopke | 0 | Son | — | Minnesota |
| 77 | Ralph Clark THIS PERSON | 26 | Head | Farmer | Minnesota |
| 78 | Evelyn Clark | 23 | Wife | House Wife | Minnesota |
| 79 | Marvin Clark | 3 | Son | — | Minnesota |
| 80 | Leon Clark | 0 | Son | — | Minnesota |
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)