MM
Mary Mayer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this Mary Mayer across the 1920, 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 6-person household.
Age 52
b. ~1888
Female
Head
Born: Hungary
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Mayer |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Widowed |
| Birthplace | Hungary |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Naturalization Status | Alien |
| Additional Details | |
| Industry | 0 |
| Highest Grade | 3 |
| 1935 Residence | Same place |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1888 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Pfister | Daughter | — | 28 | ~1912 |
| Emma Pfister | Daughter | — | 22 | ~1918 |
| Mary Mayer | Head | — | 52 | ~1888 |
| Joseph Pfister | Son | — | 34 | ~1906 |
| John Pfister | Son | — | 33 | ~1907 |
| Michael Pfister | Son | — | 30 | ~1910 |
Census Appearances
1920
Wayne, Michigan
Spouse, age 36
Wayne, Michigan · implied b. ~1884 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mayor |
| Given Name | Matilda |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Hungary |
| Year of Immigration | 1913 |
| Naturalization Status | Alien |
| Father's Birthplace | Hungary |
| Mother's Birthplace | Hungary |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Hungarian |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
1930
Wayne, Michigan
Spouse, age 42
Wayne, Michigan · implied b. ~1888 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mayor |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Hungary |
| Naturalization Status | Alien |
| Year of Immigration | 1912 |
| Age at First Marriage | 20 |
| Father's Birthplace | Hungary |
| Mother's Birthplace | Hungary |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | Magyar |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
1940
Wayne-County, Michigan
Head, age 52
Wayne-County, Michigan · implied b. ~1888 — 6 household members
| Surname | Mayer |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Widowed |
| Birthplace | Hungary |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Naturalization Status | Alien |
| Industry | 0 |
| Highest Grade | 3 |
| 1935 Residence | Same place |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
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 Mayer across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mayer
Head · 1940 · age 52 · b. ~1888 · Michigan
★ You are viewing this record
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
39 people indexed on this census page (nara:1940:m-t0627-01889-00140)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Margaret Coffin | 27 | Wife | — | Ohio |
| 42 | Leslie Hewitt | 44 | Head | Punch Press Operator | Michigan |
| 43 | Elizabeth Hewitt | 40 | Wife | Bookkeeper | Michigan |
| 44 | Fred Richards | 42 | Head | Maintenance Engineer | Michigan |
| 45 | Vera Richards | 30 | Wife | — | Michigan |
| 46 | Irvin Moore | 49 | Head | Stock Clerk | California |
| 47 | Minnie Moore | 52 | Wife | — | Pennsylvania |
| 48 | John Johnson | 19 | Lodger | New Worker | Michigan |
| 50 | Gus Deepa | 30 | Head | Payroll Auditor | Hungary |
| 51 | Eileen Deepa | 30 | Wife | — | Michigan |
| 52 | James Deepa | 8 | Son | — | Michigan |
| 53 | Richard Deepa | 1 | Son | — | Michigan |
| 54 | Charles Abercromie | 37 | Head | Laborer | Montana |
| 55 | Mary Abercromie | 35 | Wife | Stenographer | Canada-English |
| 56 | James Walsh | 53 | Head | Barber | Canada-English |
| 57 | Elva Walsh | 51 | Wife | Laborer | Canada-English |
| 58 | Archie Walsh | 23 | Son | Trimmer | Canada-English |
| 59 | Elva Mahler | 22 | Daughter | Operator | Canada-English |
| 60 | Paul Mahler | 25 | Son-in-law | Laborer | Washington |
| 61 | Louise Maxin | 54 | Head | — | Canada-English |
| 62 | Frank Maxin | 27 | Son | Cutter | Canada-English |
| 63 | Muriel Maxin | 28 | Daughter | Salesgirl | Canada-English |
| 64 | Murray Maxin | 25 | Son | Cutter | Canada-English |
| 65 | Theodore Maxin | 24 | Son | Upholsterer | Canada-English |
| 66 | Harvey Maxin | 19 | Son | Clerk | Canada-English |
| 67 | Grace Maxin | 18 | Daughter | New Worker | Canada-English |
| 68 | Joseph Ferguson | 40 | Head | Maintenance | Michigan |
| 69 | Donna Ferguson | 4 | Daughter | — | Michigan |
| 70 | Carl Drake | 30 | Lodger | Sales Clerk | Michigan |
| 71 | Margaret Drake | 30 | Lodger | — | Michigan |
| 72 | Mary Mayer THIS PERSON | 52 | Head | — | Hungary |
| 73 | Joseph Pfister | 34 | Son | Millwright | Ohio |
| 74 | John Pfister | 33 | Son | Salesclerk | Ohio |
| 75 | Michael Pfister | 30 | Son | Pressman Helper | Ohio |
| 76 | Mary Pfister | 28 | Daughter | Stenographer | Ohio |
| 77 | Emma Pfister | 22 | Daughter | Salesclerk | Ohio |
| 78 | Henry Nemayer | 54 | Head | Tool & Die Maker | Ohio |
| 79 | Mabel Nemayer | 48 | Wife | — | Ohio |
| 80 | Henry Nemayer | 23 | Son | Laborer | Michigan |
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)