MS
Mary Schmitt — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Dubuque-County, Iowa
Our Model Tree links this Mary Schmitt across the 1930 and 1940 US Censuses in Dubuque-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1917), then head of a 2-person household.
Age 23
b. ~1917
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Dubuque-County, Iowa |
| Surname | Schmitt |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Peru Township |
| 1935 Residence (County) | Dubuque |
| Additional Details | |
| Occupation | Farm Helper |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farm Helper |
| Township / Ward | Peru Township |
| Est. Birth Year | ~1917 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Schmitt | Daughter | — | 23 | ~1917 |
| Anna Schmitt | Head | — | 59 | ~1881 |
Census Appearances
1930
Dubuque, Iowa
Daughter, age 13
Dubuque, Iowa · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmitt |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Dubuque-County, Iowa
Daughter, age 23
Dubuque-County, Iowa · implied b. ~1917 — 2 household members
| Surname | Schmitt |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Peru Township |
| 1935 Residence (County) | Dubuque |
| Occupation | Farm Helper |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Mary Schmitt across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Schmitt
Daughter · 1940 · age 23 · b. ~1917 · Iowa
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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 — Dubuque-County, Iowa
Open full size
1940 US Federal Census — Dubuque-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01159-00593)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harold W. Kutsch | 19 | Son | Farm Laborer | Iowa |
| 2 | Walter M. Kutsch | 18 | Son | Farm Laborer | Iowa |
| 3 | Richard E. Kutsch | 16 | Son | — | Iowa |
| 4 | Bernard F. Kutsch | 14 | Son | — | Iowa |
| 5 | Janice C. Kutsch | 14 | Daughter | — | Iowa |
| 6 | Clara M. Kutsch | 12 | Daughter | — | Iowa |
| 7 | Francis J. Kutsch | 11 | Son | — | Iowa |
| 8 | Henry H. Mueller | 47 | Head | Farmer | Iowa |
| 9 | Florence S. Mueller | 45 | Wife | — | Iowa |
| 10 | Paul H. Mueller | 16 | Son | — | Iowa |
| 11 | Dorothy Mueller | 15 | Daughter | — | Iowa |
| 12 | Harold P. Mueller | 13 | Son | — | Iowa |
| 13 | Frank P. Poell | 49 | Head | Farmer | Iowa |
| 14 | Anna M. Poell | 46 | Wife | — | Iowa |
| 15 | Reynold F. Poell | 22 | Son | — | Iowa |
| 16 | Darlene M. Poell | 11 | Daughter | — | Iowa |
| 17 | Louisa C. Poell | 60 | Aunt | — | Iowa |
| 18 | Louisa Poell | 57 | Head | Farmer | Iowa |
| 19 | Alphonse H. Schmeller | 28 | Son-in-law | Farm Laborer | Iowa |
| 20 | Luilla M. Schmeller | 25 | Daughter | — | Iowa |
| 21 | John G. Poell | 20 | Head | Farm Laborer | Iowa |
| 22 | Alfred H. Wehrenfennig|Wehrenfennig | 32 | Head | Farmer | Iowa |
| 23 | Edna M. Wehrenfennig|Wehrenfennig | 28 | Wife | — | Iowa |
| 24 | Joseph G. Schmeller | 74 | Head | Farmer | Iowa |
| 25 | Anna C. Schmeller | 64 | Wife | — | Iowa |
| 26 | Martha E. Schmeller | 38 | Daughter | Farm Helper | Iowa |
| 27 | Clarence J. Schmeller | 30 | Son | Farm Laborer | Iowa |
| 28 | Joseph C. Schmeller | 25 | Son | Farm Laborer | Iowa |
| 29 | Stella A. Schmeller | 21 | Daughter-in-law | — | Iowa |
| 30 | Eugene H. Schmeller | 1 | Grandson | — | Iowa |
| 31 | Willard W. Stecher | 12 | Grand-nephew | — | Iowa |
| 32 | Clarence H. Stecher | 10 | Grand-nephew | — | Iowa |
| 33 | Anna C. Schmitt | 59 | Head | Farmer | Iowa |
| 34 | Mary M. Schmitt THIS PERSON | 23 | Daughter | Farm Helper | Iowa |
| 35 | Constantine J. Driessen|Driesen | 33 | Head | Farmer | Iowa |
| 36 | Selma M. Driessen|Driesen | 30 | Wife | — | Iowa |
| 37 | Rose Marie Driessen|Driesen | 5 | Daughter | — | Iowa |
| 38 | Lawrence A. Driessen|Driesen | 3 | Son | — | Iowa |
| 39 | Alice Mae Driessen|Driesen | 1 | Daughter | — | Iowa |
| 40 | Carol Ann Driessen|Driesen | 0 | Daughter | — | Iowa |
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)