MC
Mary Curtis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washtenaw-County, Michigan
Our Model Tree links this Mary Curtis across the 1930 and 1940 US Censuses in Washtenaw-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 10-person household.
Age 12
b. ~1928
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Washtenaw-County, Michigan |
| Surname | Curtis |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Sharon Twp |
| 1935 Residence (County) | Washtenaw |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Sharon Twp |
| Est. Birth Year | ~1928 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Curtis | Daughter | — | 12 | ~1928 |
| Amos Curtis | Head | — | 50 | ~1890 |
| David Curtis | Other | — | 74 | ~1866 |
| Robert Curtis | Son | — | 9 | ~1931 |
| Alton Curtis | Son | — | 16 | ~1924 |
| Charles Curtis | Son | — | 22 | ~1918 |
| David Curtis | Son | — | 4 | ~1936 |
| Norman Curtis | Son | — | 20 | ~1920 |
| Willis Curtis | Son | — | 5 | ~1935 |
| Minnette Curtis | Spouse | — | 44 | ~1896 |
Census Appearances
1930
Washtenaw, Michigan
Daughter, age 2
Washtenaw, Michigan · implied b. ~1928 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Curtis |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Washtenaw-County, Michigan
Daughter, age 12
Washtenaw-County, Michigan · implied b. ~1928 — 10 household members
| Surname | Curtis |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Sharon Twp |
| 1935 Residence (County) | Washtenaw |
| Income (1939) | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| 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 Curtis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Curtis
Daughter · 1940 · age 12 · b. ~1928 · Michigan
★ You are viewing this record
Sibling
David Curtis
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Willis Curtis
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alton Curtis
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Norman Curtis
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Curtis
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Curtis
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
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-t0627-01824-00400)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank C Ellis | 69 | Head | Farmer | Michigan |
| 2 | Gertrude A Ellis | 67 | Wife | — | Michigan |
| 3 | Roy Davidson | 47 | Head | Farmer | Michigan |
| 4 | Ethel Davidson | 45 | Wife | — | Michigan |
| 5 | Albert Bahnmiller | 42 | Head | Farmer | Michigan |
| 6 | Mary L Bahnmiller | 41 | Wife | — | Michigan |
| 7 | Lyle Bahnmiller | 18 | Son | Driving Truck | Michigan |
| 8 | Alden Bahnmiller | 13 | Son | — | Michigan |
| 9 | H. Jr Dresselhouse | 77 | Head | Farmer | Michigan |
| 10 | Eva M Dresselhouse | 70 | Wife | — | Michigan |
| 11 | Mabel M Dresselhouse | 45 | Daughter | — | Michigan |
| 12 | Merle E Dresselhouse | 31 | Head | Farmer | Michigan |
| 13 | Vivian G Dresselhouse | 31 | Wife | — | Michigan |
| 14 | Gary E Dresselhouse | 1 | Son | — | Michigan |
| 15 | Amos C Curtis | 50 | Head | Farming | Michigan |
| 16 | Minnette M Curtis | 44 | Wife | — | Michigan |
| 17 | Charles Curtis | 22 | Son | Laborer | Michigan |
| 18 | Norman Curtis | 20 | Son | — | Michigan |
| 19 | Alton N Curtis | 16 | Son | — | Michigan |
| 20 | Mary L Curtis THIS PERSON | 12 | Daughter | — | Michigan |
| 21 | Robert D Curtis | 9 | Son | — | Michigan |
| 22 | Willis E Curtis | 5 | Son | — | Michigan |
| 23 | David L Curtis | 4 | Son | — | Michigan |
| 24 | David O Curtis | 74 | Father | — | Michigan |
| 25 | Burley C Cooper | 50 | Head | Farmer | Michigan |
| 26 | Leatha Cooper | 50 | Wife | — | Michigan |
| 27 | Lynn Cooper | 27 | Son | Laborer | Michigan |
| 28 | Florence Cooper | 21 | Wife | — | Michigan |
| 29 | Leona J Cooper | 2 | Daughter | — | Michigan |
| 30 | Vernon V Ganser | 51 | Head | — | Ohio |
| 31 | Beryl Ganser | 15 | Daughter | — | Michigan |
| 32 | Donald Irwin | 27 | Head | Farmer | Michigan |
| 33 | Mildred Irwin | 28 | Wife | — | Michigan |
| 34 | Max Irwin | 51 | Father | — | Michigan |
| 35 | Elizabeth Irwin | 2 | Daughter | — | Michigan |
| 36 | Albert Carlson | 50 | Head | Farmer | Michigan |
| 37 | Julia Carlson | 48 | Wife | — | Michigan |
| 38 | Harold Demit | 22 | Head | Farmer | Michigan |
| 39 | Marie Demit | 19 | Wife | — | Michigan |
| 40 | Charles Hoffman | 52 | Head | Laborer | 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)