MW
Mary Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mesa-County, Colorado
Our Model Tree links this Mary Williams across the 1920, 1930 and 1940 US Censuses in Mesa-County, Colorado (XGBoost, ~Confirmed) — first a spouse (b.~1893), then head of a 7-person household.
Age 47
b. ~1893
Female
Spouse
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mesa-County, Colorado |
| Surname | Williams |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Precinct 8 |
| 1935 Residence (County) | Mesa |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Township / Ward | Precinct 8 |
| Est. Birth Year | ~1893 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Betty Williams | Daughter | — | 5 | ~1935 |
| Agnes Williams | Daughter | — | 15 | ~1925 |
| Evelyn Williams | Daughter | — | 13 | ~1927 |
| Jean Williams | Daughter | — | 9 | ~1931 |
| Harley Williams | Head | — | 52 | ~1888 |
| Paul Williams | Son | — | 19 | ~1921 |
| Mary Williams | Spouse | — | 47 | ~1893 |
Census Appearances
1920
Mesa, Colorado
Spouse, age 26
Mesa, Colorado · implied b. ~1894 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Mary J |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Colorado |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Kansas |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Mesa, Colorado
Spouse, age 37
Mesa, Colorado · implied b. ~1893 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Colorado |
| Age at First Marriage | 20 |
| Father's Birthplace | England |
| Mother's Birthplace | Kansas |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Mesa-County, Colorado
Spouse, age 47
Mesa-County, Colorado · implied b. ~1893 — 7 household members
| Surname | Williams |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Precinct 8 |
| 1935 Residence (County) | Mesa |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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.
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This person
Anchor record
Mary Williams
Spouse · 1940 · age 47 · b. ~1893 · Colorado
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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 — Mesa-County, Colorado
Open full size
1940 US Federal Census — Mesa-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00470-00226)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Philip O. Click | 55 | Head | Farm Operator | Virginia |
| 2 | Pearl W. Click | 53 | Wife | — | Ohio |
| 3 | Owen T. Click | 19 | Son | Laborer | Colorado |
| 4 | Pearl D. Raymond | 57 | Head | — | Iowa |
| 5 | Lynn Raymond | 25 | Son | Coal Miner | Colorado |
| 6 | Cecil D. Walck | 40 | Head | Farm Operator | Oklahoma |
| 7 | Harriett Walck | 39 | Wife | — | Colorado |
| 8 | Cecil D. Walck | 14 | Son | — | Colorado |
| 9 | Scott L. Walck | 8 | Son | — | Colorado |
| 10 | Russell A. Weber | 10 | Nephew | — | Massachusetts |
| 11 | Marvin H. Bailey | 28 | Head | Farm Laborer | Kansas |
| 12 | Edna R. Bailey | 23 | Wife | — | Colorado |
| 13 | Marvin L. Bailey | 0 | Son | — | Colorado |
| 14 | Harley R. Williams | 52 | Head | Farm Operator | Wyoming |
| 15 | Mary Williams THIS PERSON | 47 | Wife | — | Colorado |
| 16 | Paul Williams | 19 | Son | Farm Laborer | Colorado |
| 17 | Agnes Williams | 15 | Daughter | — | Colorado |
| 18 | Evelyn Williams | 13 | Daughter | — | Colorado |
| 19 | Jean Williams | 9 | Daughter | — | Colorado |
| 20 | Betty Williams | 5 | Daughter | — | Colorado |
| 21 | Arlonzo D. Stites | 53 | Head | Farm Operator | Colorado |
| 22 | Goldia B. Stites | 51 | Wife | — | Colorado |
| 23 | Shirley A. Stites | 12 | Daughter | — | Colorado |
| 24 | Loney B. Stites | 11 | Son | — | Colorado |
| 25 | Vernon L. Nelson | 38 | Head | Senior Clerk | Minnesota |
| 26 | Bernice H. Nelson | 35 | Wife | — | Nebraska |
| 27 | Douglas Nelson | 10 | Son | — | North Dakota |
| 28 | Russell Nelson | 7 | Son | — | North Dakota |
| 29 | Barbara Nelson | 5 | Daughter | — | Colorado |
| 30 | Sterling Nelson | 4 | Son | — | Colorado |
| 31 | Rosa Anna Coakley | 55 | Head | Farm Operator | Nebraska |
| 32 | George H. Williams | 53 | Head | — | Nebraska |
| 33 | Etta L. Williams | 33 | Wife | — | Montana |
| 34 | Ray W. Lyons | 42 | Head | Farm Operator | Iowa |
| 35 | Thea T. Lyons | 34 | Wife | Newspaper Correspondent | Colorado |
| 36 | Fern R. Lyons | 13 | Daughter | — | Colorado |
| 37 | Everett W. Lyons | 6 | Son | — | Colorado |
| 38 | Carol Sue Lyons | 4 | Daughter | — | Colorado |
| 39 | Carl E. Carpenter | 50 | Head | Farm Operator | Colorado |
| 40 | Linnie Carpenter | 50 | Wife | — | Iowa |
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)