MW
Mary William — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Denver, Colorado
Our Model Tree links this Mary William across the 1930 and 1940 US Censuses in Denver, Colorado (XGBoost, ~Confirmed) — first a spouse (b.~1887), then head of a 5-person household.
Age 43
b. ~1887
Female
Spouse
Born: Colorado
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Denver, Colorado |
| Surname | William |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Colorado |
| Age at First Marriage | 20 |
| Father's Birthplace | W. Virginia |
| Mother's Birthplace | Texas |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Township / Ward | Denver City |
| Est. Birth Year | ~1887 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Helen William | Daughter | — | 18 | ~1912 |
| Robert William | Head | — | 43 | ~1887 |
| Mary William | Spouse | — | 43 | ~1887 |
| Chas William | Son | — | 22 | ~1908 |
| George William | Son | — | 14 | ~1916 |
Census Appearances
1930
Denver, Colorado
Spouse, age 43
Denver, Colorado · implied b. ~1887 — 5 household members
| Surname | William |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Colorado |
| Age at First Marriage | 20 |
| Father's Birthplace | W. Virginia |
| Mother's Birthplace | Texas |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Denver-County, Colorado
Head, age 53
Denver-County, Colorado · implied b. ~1887 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Mary E. |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Widowed |
| Birthplace | Colorado |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Industry | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Illinois |
| 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 William across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary William
Spouse · 1930 · age 43 · b. ~1887 · Colorado
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Denver, Colorado
Open full size
1930 US Federal Census — Denver, Colorado
Page Contents
50 people indexed on this census page (ia:1930:15thcensus236unit:0288)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Albert Altvater | 42 | Head | Miner | Colorado |
| 52 | Dorothy Altvater | 37 | Wife | — | Kansas |
| 53 | Bernice Betty Altvater | 16 | Daughter | — | Colorado |
| 54 | G. N. Smedegaard | 47 | Head | Contractor | Denmark |
| 55 | Martha Smedegaard | 46 | Wife | — | Denmark |
| 56 | Maurice Smedegaard | 18 | Son | — | Colorado |
| 57 | Norman Smedegaard | 13 | Son | — | Colorado |
| 58 | Marie Smedegaard | 6 | Daughter | — | Colorado |
| 59 | Abraham Levy | 42 | Head | Broker | Pennsylvania |
| 60 | Doris Levy | 26 | Wife | — | England |
| 61 | Marilyn Levy | 5 | Daughter | — | Colorado |
| 62 | Fred Schreffler | 64 | Head | Safety Vault | Indiana |
| 63 | Maggie Schreffler | 63 | Wife | — | Kentucky |
| 64 | Eloise Schreffler | 39 | Daughter | Office | Indiana |
| 65 | Gustav Gramcko | 40 | Head | Electrician | Illinois |
| 66 | Lettie Gramcko | 51 | Wife | — | Colorado |
| 67 | Helen Gramcko | 16 | Daughter | — | Colorado |
| 68 | Letitia Gramcko | 10 | Daughter | — | Colorado |
| 69 | Raymond Duncan | 26 | Head | Salesman | Missouri |
| 70 | Flora B. Duncan | 25 | Wife | Asst In Mgr | Indiana |
| 71 | David Cairns | 64 | Head | Employee | Scotland |
| 72 | Agnes J. Cairns | 64 | Wife | — | England |
| 73 | Robert J. Andrews | 33 | Head | Clerk | Colorado |
| 74 | Roberta Andrews | 34 | Wife | — | Colorado |
| 75 | George Andrews | 9 | Son | — | Colorado |
| 76 | Agnes Andrews | 6 | Daughter | — | Colorado |
| 77 | Clara Andrews | 5 | Daughter | — | Colorado |
| 78 | Stanley Andrews | 2 | Son | — | Colorado |
| 79 | Carrie Whitman | 72 | Head | — | Michigan |
| 80 | Grace Whitman | 22 | Daughter | Supervisor | New Mexico |
| 81 | Ben Hein | 38 | Head | Car Washer | Nebraska |
| 82 | Ruth Hein | 37 | Wife | — | Indiana |
| 83 | James Hein | 14 | Son | — | Colorado |
| 84 | Forest Hein | 10 | Son | — | Colorado |
| 85 | Geo. W. Spence | 38 | Head | Tailor | Mississippi |
| 86 | Sidonia Spence | 33 | Wife | — | Louisiana |
| 87 | Dorothy Spence | 8 | Daughter | — | Mississippi |
| 88 | Gloria Spence | 7 | Daughter | — | Colorado |
| 89 | George W. Spence | 3 | Son | — | Colorado |
| 90 | J. Everett Hore | 29 | Head | Chief Clerk | Colorado |
| 91 | Mary Hore | 53 | Mother | — | Pennsylvania |
| 92 | Edward Warhover | 39 | Head | Draftsman | Illinois |
| 93 | Thadeline Warhover | 34 | Wife | — | Colorado |
| 94 | Robert Warhover | 11 | Son | — | Colorado |
| 95 | Mary Warhover | 6 | Daughter | — | Colorado |
| 96 | Robert William | 43 | Head | Furniture | England |
| 97 | Mary William THIS PERSON | 43 | Wife | — | Colorado |
| 98 | Chas William | 22 | Son | Asst Prof | Colorado |
| 99 | Helen William | 18 | Daughter | Clerk | Colorado |
| 100 | George William | 14 | Son | — | Colorado |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)