MF
Mary French — 1940 US Census Record
Model Tree available1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this Mary French across the 1920, 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed), with identified parents John & Mary — first a daughter (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Female
Daughter
Born: Scotland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | French |
| Given Name | Mary Mae |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Scotland |
| 1935 Residence (City) | Detroit |
| 1935 Residence (County) | Wayne |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | typist |
| Industry | wholesale oil co. |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 176 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Typist |
| Township / Ward | Detroit |
| Est. Birth Year | ~1910 |
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 |
|---|---|---|---|---|
| Lillian French | Daughter | — | 26 | ~1914 |
| Mary French | Daughter | — | 30 | ~1910 |
| John French | Head | — | 65 | ~1875 |
| Mary French | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Wayne, Michigan
Daughter, age 9
Wayne, Michigan · implied b. ~1911 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | French |
| Given Name | Mary Ann |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Scotland |
| Year of Immigration | 1910 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Year of Naturalization | 1911 |
| Birthplace (normalized) | scotland |
1930
Wayne, Michigan
Daughter, age 20
Wayne, Michigan · implied b. ~1910 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | French |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1913 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Clerk |
| Industry | Oil Refinery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Wayne-County, Michigan
Daughter, age 30
Wayne-County, Michigan · implied b. ~1910 — 4 household members
| Surname | French |
| Given Name | Mary Mae |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Scotland |
| 1935 Residence (City) | Detroit |
| 1935 Residence (County) | Wayne |
| Naturalization Status | Naturalized |
| Occupation | typist |
| Industry | wholesale oil co. |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 176 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 French across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John French (~0.92 confidence) and mother Mary French (~0.92 confidence) and mother Mary French (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John French
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Mary French
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Mary French
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary French
Daughter · 1940 · age 30 · b. ~1910 · Michigan
★ You are viewing this record
Sibling
Lillian French
Sibling · 1940 · age 26
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-t0627-01878-00627)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Thomas Economy | 45 | Head | Bartender | Greece |
| 42 | Mamie Economy | 39 | Wife | — | Ohio |
| 43 | Elaine Economy | 12 | Daughter | — | Penna. |
| 44 | John Economy | 10 | Son | — | Ohio |
| 45 | Frances Economy | 8 | Daughter | — | Ohio |
| 46 | James Economy | 5 | Son | — | Ohio |
| 47 | Elizabeth Economy | 3 | Daughter | — | Ohio |
| 48 | William Mcbeth | 39 | Head | Chauffeur | Massach. |
| 49 | Rosella Mcbeth | 36 | Wife | — | Michigan |
| 50 | June Marie Mcbeth | 14 | Daughter | — | Michigan |
| 51 | Charles Mcbeth | 12 | Son | — | Michigan |
| 52 | Eugene Mcbeth | 10 | Son | — | Michigan |
| 53 | John French | 65 | Head | Inspector | Scotland |
| 54 | Mary D. French | 55 | Wife | — | Scotland |
| 55 | Mary Mae French THIS PERSON | 30 | Daughter | Typist | Scotland |
| 56 | Lillian French | 26 | Daughter | Stenographer | Michigan |
| 57 | Earl Schulz | 48 | Head | Yard Foreman | Michigan |
| 58 | Helen D. Schulz | 45 | Wife | — | New York |
| 59 | Frank Doran | 50 | Head | Laborer | Michigan |
| 60 | Bertha S. Doran | 38 | Wife | — | Michigan |
| 61 | Mary Doran | 9 | Daughter | — | Michigan |
| 62 | Cletus Doran | 7 | Son | — | Michigan |
| 63 | Duncan Doran | 4 | Son | — | Michigan |
| 64 | Mary Rose | 80 | Mother in law | — | Michigan |
| 65 | Harold D. Brown | 44 | Head | Switchman | English |
| 66 | Malvine Brown | 51 | Wife | — | Canada |
| 67 | John D. Mccready | 78 | Head | — | Canada |
| 68 | Annie Mccready | 76 | Wife | — | Michigan |
| 69 | Effie Mccready | 49 | Daughter | Proprietor | Michigan |
| 70 | John Posner | 61 | Head | — | Michigan |
| 71 | Victoria Posner | 52 | Head | — | Poland |
| 72 | Edward Posner | 28 | Son | Laborer | Michigan |
| 73 | Florence Posner | 22 | Daughter | Bench Hand | Michigan |
| 74 | Mary Rita Posner | 18 | Daughter | — | Michigan |
| 75 | Julia Posner | 15 | Daughter | — | Michigan |
| 76 | Jeanette Posner | 12 | Daughter | — | Michigan |
| 77 | Gerald Posner | 6 | Son | — | Michigan |
| 78 | Clyde Lattimore | 52 | Head | Die Maker | Ohio |
| 79 | Alma Lattimore | 48 | Wife | — | Michigan |
| 80 | Wilbur Lattimore | 19 | Son | Tool And Die Maker | Michigan |
Related Census Records
Pedigree Summary
Mary + 1 sibling
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)