MF
Mary Farmer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this Mary Farmer across the 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 9-person household.
Age 11
b. ~1929
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Farmer |
| Given Name | Mary Ann |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Additional Details | |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same Place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1929 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Farmer | Daughter | — | 17 | ~1923 |
| John Farmer | Son | — | 1 | ~1939 |
| Charlotte Farmer | Daughter | — | 3 | ~1937 |
| Mary Farmer | Daughter | — | 11 | ~1929 |
| Mary Farmer | Spouse | — | 45 | ~1895 |
| Helen Farmer | Daughter | — | 15 | ~1925 |
| Henry Farmer | Son | — | 13 | ~1927 |
| Russell Farmer | Head | — | 45 | ~1895 |
| Theresa Farmer | Daughter | — | 9 | ~1931 |
Census Appearances
1930
Wayne, Michigan
Daughter, age 1
Wayne, Michigan · implied b. ~1929 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Farmer |
| Given Name | Mary Anne |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | New York |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Daughter, age 11
Wayne-County, Michigan · implied b. ~1929 — 9 household members
| Surname | Farmer |
| Given Name | Mary Ann |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | 7 |
| 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 Farmer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Farmer
Daughter · 1940 · age 11 · b. ~1929 · Michigan
★ You are viewing this record
Sibling
Helen Farmer
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charlotte Farmer
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Farmer
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Farmer
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Farmer
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Farmer
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 — Wayne-County, Michigan
Open full size
1940 US Federal Census — Wayne-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01840-00893)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Mckechnie | 51 | Head | Marine Engineer | Canada English |
| 2 | Sarah Mckechnie | 49 | Wife | — | Ireland Northern |
| 3 | Noreen Mckechnie | 20 | Daughter | — | Michigan |
| 4 | Donald Mckechnie | 14 | Son | — | Michigan |
| 5 | Harry Ryan | 46 | Head | — | Michigan |
| 6 | Mabel Ryan | 42 | Wife | Inspector | Michigan |
| 7 | Anthony Lemke | 53 | Head | — | Poland |
| 8 | Lena Lemke | 48 | Wife | Tool Maker | Poland |
| 9 | Rose Lemke | 20 | Daughter | — | Canada |
| 10 | Josephine Lemke | 18 | Daughter | Typist | Canada |
| 11 | Lillian Lemke | 14 | Daughter | — | Michigan |
| 12 | Theodore Schonak | 32 | Head | — | Michigan |
| 13 | Elizabeth Schonak | 30 | Wife | Salesman | Kentucky |
| 14 | Russell Farmer | 45 | Head | — | New York |
| 15 | Mary Farmer | 45 | Wife | Tool Maker | New York |
| 16 | Dorothy Farmer | 17 | Daughter | — | Michigan |
| 17 | Helen Farmer | 15 | Daughter | — | Michigan |
| 18 | Henry Farmer | 13 | Son | — | Michigan |
| 19 | Mary Ann Farmer THIS PERSON | 11 | Daughter | — | Michigan |
| 20 | Theresa Farmer | 9 | Daughter | — | Michigan |
| 21 | Charlotte Farmer | 3 | Daughter | — | Michigan |
| 22 | John Farmer | 1 | Son | — | Michigan |
| 23 | John Wilson | 41 | Head | Machinist | Michigan |
| 24 | Irene Wilson | 38 | Wife | — | Michigan |
| 25 | Paul Wilson | 18 | Son | — | Illinois |
| 26 | Norman Denk | 41 | Head | — | New York |
| 27 | Anna Denk | 56 | Wife | Metal Finisher | Switzerland |
| 28 | Burl Van Horn | 41 | Head | Auto Mechanic | Michigan |
| 29 | Mildred Van Horn | 39 | Wife | — | Michigan |
| 30 | Betty Van Horn | 17 | Daughter | — | Michigan |
| 31 | Dan Murphy | 52 | Head | Machinist | Northern Ireland |
| 32 | Jane Murphy | 48 | Wife | — | Northern Ireland |
| 33 | Rosa Murphy | 10 | Daughter | — | Michigan |
| 34 | Joe Murphy | 8 | Son | — | Michigan |
| 35 | Lionel Emery | 28 | Head | Station Attendant | Canada English |
| 36 | Marie Emery | 27 | Wife | Sub Assembler | Illinois |
| 37 | Constance Emery | 4 | Daughter | — | Michigan |
| 38 | Marie Rank | 58 | Servant | Housework | Maryland |
| 39 | Charles Mc Gill | 60 | Head | Inspector | New York |
| 40 | Mc Gill | None | — | — | — |
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)