MG
Mary Gray — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Shiawassee-County, Michigan
Our Model Tree links this Mary Gray across the 1920, 1930 and 1940 US Censuses in Shiawassee-County, Michigan (XGBoost, ~Confirmed) — first a spouse (b.~1882), then head of a 4-person household.
Age 58
b. ~1882
Female
Spouse
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Shiawassee-County, Michigan |
| Surname | Gray |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Owosso City |
| 1935 Residence (County) | Shiawassee |
| Additional Details | |
| Occupation | Clerk |
| Industry | Sugar |
| Class of Worker | PW |
| Income (1939) | 1900 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Clerk |
| Township / Ward | Owosso City |
| Est. Birth Year | ~1882 |
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 |
|---|---|---|---|---|
| Clarence Gray | Head | — | 61 | ~1879 |
| Frankie Gray | Son | — | 16 | ~1924 |
| Stanley Gray | Son | — | 29 | ~1911 |
| Mary Gray | Spouse | — | 58 | ~1882 |
Census Appearances
1920
Shiawassee, Michigan
Spouse, age 38
Shiawassee, Michigan · implied b. ~1882 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Shiawassee, Michigan
Spouse, age 48
Shiawassee, Michigan · implied b. ~1882 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Marie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 22 |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Shiawassee-County, Michigan
Spouse, age 58
Shiawassee-County, Michigan · implied b. ~1882 — 4 household members
| Surname | Gray |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Owosso City |
| 1935 Residence (County) | Shiawassee |
| Occupation | Clerk |
| Industry | Sugar |
| Class of Worker | PW |
| Income (1939) | 1900 |
| Highest Grade | H-2 |
| 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 Gray across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Gray
Spouse · 1940 · age 58 · b. ~1882 · Michigan
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Shiawassee-County, Michigan
Open full size
1940 US Federal Census — Shiawassee-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01820-00663)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Otis M. Jennings | 68 | Head | — | Michigan |
| 2 | Ruth E. Plaisted | 22 | Lodger | Teacher | Ohio |
| 3 | Bernice White | 29 | Lodger | Teacher | Michigan |
| 4 | Libbie Vitali | 21 | Lodger | Teacher | Michigan |
| 5 | Calvin A. Steff | 46 | Lodger | Stock Chaser | Michigan |
| 6 | — | 41 | Lodger | — | Michigan |
| 7 | Floyd R. Schmid | 38 | Head | Upholsterer | Michigan |
| 8 | Dorothy V. Schmid | 34 | Wife | — | Michigan |
| 9 | Shirley Schmid | 13 | Daughter | — | Michigan |
| 10 | John Schmid | 5 | Son | — | Michigan |
| 11 | Clarence Gray | 61 | Head | Laborer | Michigan |
| 12 | Mary Gray THIS PERSON | 58 | Wife | Clerk | Michigan |
| 13 | Stanley Gray | 29 | Son | Manager | Michigan |
| 14 | Frankie Gray | 16 | Son | Paper Boy | Michigan |
| 15 | James A. Voltz | 22 | Head | Clerk | New York |
| 16 | Mary Voltz | 24 | Wife | — | Michigan |
| 17 | Frederick W. Weingart | 86 | Head | — | Germany |
| 18 | Michael F. Conley | 72 | Head | — | Michigan |
| 19 | Anna Conley | 72 | Wife | — | Michigan |
| 20 | Dean W. Wallen | 31 | Head | Baker | Michigan |
| 21 | Lucille W. Wallen | 38 | Wife | — | Michigan |
| 22 | Joy Lingo | 13 | Step-daughter | — | Michigan |
| 23 | Donald Lingo | 7 | Step-son | — | Michigan |
| 24 | Ivan W. Thompson | 38 | Head | Sales Clerk | Michigan |
| 25 | Leda Thompson | 37 | Wife | Clerical | Michigan |
| 26 | Marilyn Thompson | 11 | Daughter | — | Michigan |
| 27 | Irene E. Thompson | 10 | Daughter | — | Michigan |
| 28 | Bert Kirby | 64 | Head | — | Michigan |
| 29 | Alzada Kirby | 54 | Wife | — | Ohio |
| 30 | Martha Kirby | 17 | Daughter | General House Work | Michigan |
| 31 | Betty Kirby | 11 | Daughter | — | Michigan |
| 32 | Josephine Wing | 19 | Daughter | Electric Welder | Michigan |
| 33 | Carol Wing | 2 | Grand-daughter | — | Michigan |
| 34 | Floyd Wing | 20 | Grand-son | — | Michigan |
| 35 | Harrison Wing | 1 | Grand-son | — | Michigan |
| 36 | Arthur Wing | 0 | Grand-son | — | Michigan |
| 37 | James C. Carmody | 48 | Head | Shipping Clerk | Michigan |
| 38 | Marie Carmody | 46 | Wife | — | Michigan |
| 39 | James Carmody | 16 | Son | — | Michigan |
| 40 | Howard L. Johnston | 29 | Lodger | Bus Operator | Illinois |
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)