MW
Mary Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this Mary Williams across the 1920, 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a spouse (b.~1884), then head of a 3-person household.
Age 56
b. ~1884
Female
Spouse
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Williams |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Canada |
| 1935 Residence (County) | Canada |
| Naturalization Status | Alien |
| Additional Details | |
| Industry | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Canada |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1884 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Agnes Williams | Daughter | — | 29 | ~1911 |
| Alexander Williams | Head | — | 60 | ~1880 |
| Mary Williams | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Wayne, Michigan
Spouse, age 38
Wayne, Michigan · implied b. ~1882 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | William |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Keeper |
| Industry | Rooming house |
| Class of Worker | O |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
Spouse, age 49
Wayne, Michigan · implied b. ~1881 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | William |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Alien |
| Year of Immigration | 1925 |
| Age at First Marriage | 26 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Wayne-County, Michigan
Spouse, age 56
Wayne-County, Michigan · implied b. ~1884 — 3 household members
| Surname | Williams |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Canada |
| 1935 Residence (County) | Canada |
| Naturalization Status | Alien |
| Industry | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Canada |
| 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 Williams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Williams
Spouse · 1940 · age 56 · b. ~1884 · 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-t0627-01852-00566)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Allan | 46 | Head | Machinist | Scotland |
| 42 | Edna Allan | 46 | Wife | — | New York |
| 43 | Lillian Allan | 20 | Daughter | New Worker | Michigan |
| 44 | William Allan | 12 | Son | — | Michigan |
| 45 | Lillian Maffield | 69 | Mother in law | — | New York |
| 46 | Charles Symons | 38 | Head | Crane Operator | Michigan |
| 47 | Katherine Symons | 49 | Wife | — | England |
| 48 | Garfield Wickens | 26 | Step son | Tool Maker | England |
| 49 | Morris Schwartz | 50 | Head | Proprietor | Russia |
| 50 | Goldie Schwartz | 46 | Wife | Saleslady | Rumania |
| 51 | Albert Schwartz | 22 | Son | — | Penna |
| 52 | Bernard Schwartz | 18 | Son | Salesman | Penna |
| 53 | Bella Schwartz | 13 | Daughter | — | Penna |
| 54 | Lena Linn | 55 | Head | — | Russia |
| 55 | Charlotte Linn | 30 | Daughter | Stenographer | Russia |
| 56 | Estelle Linn | 27 | Daughter | Stenographer | Russia |
| 57 | Marvin Linn | 17 | Son | — | Michigan |
| 58 | Joseph Schow | 55 | Head | Proprietor | Poland |
| 59 | Lillian Schow | 57 | Wife | — | Poland |
| 60 | William Schow | 26 | Son | Salesman | Poland |
| 61 | John Schow | 16 | Son | — | Michigan |
| 62 | John Dubin | 37 | Head | Agent | Russia |
| 63 | Sylvia Dubin | 30 | Wife | — | Poland |
| 64 | Allene Dubin | 9 | Daughter | — | Michigan |
| 65 | Harold Dubin | 5 | Son | — | Michigan |
| 66 | Henry Russell | 38 | Head | Tool Maker | Scotland |
| 67 | Catherine Russell | 35 | Wife | — | England |
| 68 | Mary Russell | 7 | Daughter | — | Michigan |
| 69 | Margaret Russell | 2 | Daughter | — | Michigan |
| 70 | Isaac Herman | 52 | Head | Agent | Rumania |
| 71 | Anna Herman | 50 | Wife | — | Rumania |
| 72 | Alice Herman | 25 | Daughter | Saleslady | Michigan |
| 73 | Morris Herman | 17 | Son | Delivery Man | Michigan |
| 74 | Stanley King | 27 | Head | Timekeeper | Michigan |
| 75 | Clara King | 56 | Mother | — | Michigan |
| 76 | Alexander Williams | 60 | Head | Carpenter | Scotland |
| 77 | Mary Williams THIS PERSON | 56 | Wife | — | Scotland |
| 78 | Agnes Williams | 29 | Daughter | Waitress | Scotland |
| 80 | Cecil Sassone | 51 | Head | Oven Man | Italy |
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)