SM
Sophia Miller — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Crawford-County, Iowa
Our Model Tree links this Sophia Miller across the 1920, 1930 and 1940 US Censuses in Crawford-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1875), then head of a 3-person household.
Age 65
b. ~1875
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Crawford-County, Iowa |
| Surname | Miller |
| Given Name | Sophia |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Morgan Township |
| 1935 Residence (County) | Crawford |
| Additional Details | |
| Highest Grade | H 7 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Morgan Township |
| Est. Birth Year | ~1875 |
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 Sophia | Age | Birth yr |
|---|---|---|---|---|
| Herman Miller | Head | — | 69 | ~1871 |
| Sophia Miller | Spouse | — | 65 | ~1875 |
| John Miller | Son | — | 39 | ~1901 |
Census Appearances
1920
Crawford, Iowa
Spouse, age 46
Crawford, Iowa · implied b. ~1874 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Miller |
| Given Name | Sophia |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Crawford, Iowa
Other, age 56
Crawford, Iowa · implied b. ~1874 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Miller |
| Given Name | Sophie |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 20 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Crawford-County, Iowa
Spouse, age 65
Crawford-County, Iowa · implied b. ~1875 — 3 household members
| Surname | Miller |
| Given Name | Sophia |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Morgan Township |
| 1935 Residence (County) | Crawford |
| Highest Grade | H 7 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Sophia Miller across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Sophia Miller
Spouse · 1940 · age 65 · b. ~1875 · Iowa
★ 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 — Crawford-County, Iowa
Open full size
1940 US Federal Census — Crawford-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01152-00355)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Herman Jr. Harms | 28 | Head | Farm Laborer | Iowa |
| 2 | Elma O. Harms | 29 | Wife | — | Iowa |
| 3 | Herman R. Miller | 69 | Head | — | Illinois |
| 4 | Sophia Miller THIS PERSON | 65 | Wife | — | Illinois |
| 5 | John Miller | 39 | Son | Farmer | Iowa |
| 6 | Leonard Clausen | 27 | Head | Farm Laborer | Iowa |
| 7 | Mildred A. Clausen | 23 | Wife | — | Iowa |
| 8 | Julius A. Krohnke | 67 | Head | Farmer | Iowa |
| 9 | Mary Krohnke | 60 | Wife | — | Iowa |
| 10 | Marten Hansen | 18 | Hired Man | Farm Laborer | Iowa |
| 11 | Henry O. Prussing | 39 | Head | Farm Laborer | Iowa |
| 12 | Marie Prussing | 31 | Wife | — | Iowa |
| 13 | Wilbert Prussing | 9 | Son | — | Iowa |
| 14 | Anna O. Hamann | 57 | Head | — | Germany |
| 15 | Robert Hamann | 14 | Son | — | Iowa |
| 16 | Leona Hamann | 82 | Mother-in-law | — | Germany |
| 17 | Edmund A. Hamann | 26 | Head | Farm Laborer | Iowa |
| 18 | Eleonora Hamann | 27 | Wife | — | Iowa |
| 19 | Harry A. Hamann | 30 | Head | Farm Laborer | Iowa |
| 20 | Evelyn Hamann | 33 | Wife | — | Iowa |
| 21 | Jane Hamann | 4 | Daughter | — | Iowa |
| 22 | Darrell Hamann | 3 | Son | — | Iowa |
| 23 | Marie E. O. Schultz | 50 | Head | Farmer | Iowa |
| 24 | Celia A. Schultz | 27 | Head | Farmer | Iowa |
| 25 | H. W. Macetum | 56 | Head | Farmer | Iowa |
| 26 | Etta Macetum | 54 | Wife | — | Indiana |
| 27 | Leonard Curd | 23 | Step son | Line Man | Iowa |
| 28 | Fred Schroeder | 25 | Head | Farmer | Iowa |
| 29 | Alice Schroeder | 24 | Wife | — | Iowa |
| 30 | Albert Schultz | 64 | Head | Farmer | Iowa |
| 31 | Bertha A. Schultz | 61 | Wife | — | Iowa |
| 32 | Roy Schultz | 38 | Son | Farm Laborer | Iowa |
| 33 | Elmer Seurol | 21 | Hired Man | Farm Laborer | Iowa |
| 34 | John P. Hamann | 65 | Head | Farmer | Iowa |
| 35 | Anna Hamann | 65 | Wife | — | Iowa |
| 36 | Matt Wilkins | 47 | Head | Farmer | Germany |
| 37 | Minnie P. Wilkins | 52 | Wife | — | Iowa |
| 38 | Margaret Wilkins | 23 | Daughter | — | Iowa |
| 39 | Son Johannes | None | M | Farm | — |
| 40 | Son Nickel | None | M | Farm | — |
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)