MS
Mary Schmidt — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washtenaw-County, Michigan
Our Model Tree links this Mary Schmidt across the 1920, 1930 and 1940 US Censuses in Washtenaw-County, Michigan (XGBoost, ~Confirmed) — first a spouse (b.~1897), then head of a 4-person household.
Age 43
b. ~1897
Female
Spouse
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Washtenaw-County, Michigan |
| Surname | Schmidt |
| Given Name | Mary A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | ANN ARBOR city |
| 1935 Residence (County) | WASHTENAW |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Ann Arbor City |
| Est. Birth Year | ~1897 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Schmidt | Daughter | — | 19 | ~1921 |
| Walter Schmidt | Head | — | 45 | ~1895 |
| Robert Schmidt | Son | — | 17 | ~1923 |
| Mary Schmidt | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Washtenaw, Michigan
Spouse, age 21
Washtenaw, Michigan · implied b. ~1899 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Michigan |
| Father's Birthplace | Germany |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Washtenaw, Michigan
Spouse, age 32
Washtenaw, Michigan · implied b. ~1898 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 20 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Washtenaw-County, Michigan
Spouse, age 43
Washtenaw-County, Michigan · implied b. ~1897 — 4 household members
| Surname | Schmidt |
| Given Name | Mary A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | ANN ARBOR city |
| 1935 Residence (County) | WASHTENAW |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| 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 Mary Schmidt across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Schmidt
Spouse · 1940 · age 43 · b. ~1897 · 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 — Washtenaw-County, Michigan
Open full size
1940 US Federal Census — Washtenaw-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01823-00120)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joseph F. Schosser | 56 | Head | Owner-Operator | Illinois |
| 42 | Beulah B. Schosser | 40 | Wife | — | Michigan |
| 43 | Clare J. Schosser | 19 | Son | Substitute | Michigan |
| 44 | William M. Schosser | 16 | Son | Substitute | Missouri |
| 45 | Jack F. Schosser | 14 | Son | — | Missouri |
| 46 | Walter J. Schmidt | 45 | Head | Carrier | Michigan |
| 47 | Mary A. Schmidt THIS PERSON | 43 | Wife | — | Michigan |
| 48 | Dorothy M. Schmidt | 19 | Daughter | Bookkeeper | Michigan |
| 49 | Robert W. Schmidt | 17 | Son | Delivery | Michigan |
| 50 | John Oliver | 39 | Head | Grower | Michigan |
| 51 | Oliver J. Butekunst | 39 | Head | Grower | Michigan |
| 52 | Margaret V. Butekunst | 35 | Wife | Inspector | Michigan |
| 53 | Evelyn J. Butekunst | 14 | Daughter | — | Michigan |
| 54 | Frank W. Lange | 47 | Lodger | Stockman | Michigan |
| 55 | Horace W. Campbell | 40 | Head | Sales Manager | Michigan |
| 56 | Velma D. Campbell | 37 | Wife | — | Michigan |
| 57 | Horace W. Jr. Campbell | 6 | Son | — | Michigan |
| 58 | Keith A. Campbell | 3 | Son | — | Michigan |
| 59 | Helen N. Tracy | 76 | Head | — | New York |
| 60 | Frances I. Tracy | 42 | Daughter | Trained Nurse | New York |
| 61 | Victor N. Tracy | 41 | Son | Operator | New York |
| 62 | Paul F. Tracy | 38 | Son | Pin-Setter | New York |
| 63 | Joseph J. P. Lynch | 35 | Head | — | Canada |
| 64 | Miriam G. Lynch | 36 | Wife | Stenographer | Ohio |
| 65 | Heather M. Lynch | 1 | Daughter | — | Michigan |
| 66 | Harold E. Gauss | 37 | Head | Fireman | Michigan |
| 67 | Lois K. Gauss | 37 | Wife | — | Michigan |
| 68 | Richard H. Gauss | 11 | Son | — | Michigan |
| 69 | Emma L. Mayer | 72 | Mother-in-law | — | Michigan |
| 70 | William F. Seyfried | 69 | Head | — | Germany |
| 71 | Elizabeth M. Seyfried | 72 | Wife | — | Michigan |
| 72 | George J. Jr. Stoll | 75 | Head | Janitor | Germany |
| 73 | Mary F. Stoll | 62 | Wife | — | Germany |
| 74 | Margaret I. Ridenour | 47 | Lodger | Stenographer | Ohio |
| 75 | Frances E. Locke | 32 | Lodger | Bookkeeper | Austria |
| 76 | Edward J. Stoll | 71 | Head | Repairman | Michigan |
| 77 | Hattie Stoll | 64 | Wife | — | Michigan |
| 78 | Viola V. Stoll | 39 | Daughter | Receptionist | Michigan |
| 79 | William C. Erdman | 51 | Head | Painter | Michigan |
| 80 | Hilda F. Erdman | 46 | Wife | — | Michigan |
Related Census Records
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)