MG
Mary Gardner — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Denver-County, Colorado
Our Model Tree links this Mary Gardner across the 1920, 1930 and 1940 US Censuses in Denver-County, Colorado (XGBoost, ~Confirmed) — first a spouse (b.~1884), then head of a 4-person household.
Age 56
b. ~1884
Female
Spouse
Born: West Virginia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Denver-County, Colorado |
| Surname | Gardner |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | West Virginia |
| 1935 Residence (City) | Denver |
| 1935 Residence (County) | Denver |
| Additional Details | |
| Industry | 0 |
| Class of Worker | No |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
| Township / Ward | Denver |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Ruth Gardner | Head | — | 58 | ~1882 |
| George Gardner | Son | — | 33 | ~1907 |
| Robert Gardner | Son | — | 25 | ~1915 |
| Mary Gardner | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Denver, Colorado
Spouse, age 36
Denver, Colorado · implied b. ~1884 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gardner |
| Given Name | Mary M |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | West Virginia |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
1930
Denver, Colorado
Other, age 46
Denver, Colorado · implied b. ~1884 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gardner |
| Given Name | Mary M. |
| Relationship to Head | wife-H |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | West Virginia |
| Age at First Marriage | 20 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
1940
Denver-County, Colorado
Spouse, age 56
Denver-County, Colorado · implied b. ~1884 — 4 household members
| Surname | Gardner |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | West Virginia |
| 1935 Residence (City) | Denver |
| 1935 Residence (County) | Denver |
| Industry | 0 |
| Class of Worker | No |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
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 Gardner 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 Gardner
Spouse · 1940 · age 56 · b. ~1884 · 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 — Denver-County, Colorado
Open full size
1940 US Federal Census — Denver-County, Colorado
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00493-00356)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas Sullivan | 15 | Son | — | Colorado |
| 2 | Raymond Sullivan | 11 | Son | — | Colorado |
| 3 | Edward Mcclary | 74 | Lodger | — | Iowa |
| 4 | Ruth S. Gardner | 58 | Head | Clerk | West Virginia |
| 5 | Mary E. Gardner THIS PERSON | 56 | Wife | — | West Virginia |
| 6 | George Gardner | 33 | Son | Laborer | Colorado |
| 7 | Robert C. Gardner | 25 | Son | — | Colorado |
| 8 | Francis Harold White | 46 | Head | Mail Carrier | Pennsylvania |
| 9 | Lydia P. White | 40 | Wife | — | Indiana |
| 10 | Harold Geo. Watkins | 52 | Head | Locomotive Engineer | Kansas |
| 11 | Elizabeth E. Watkins | 87 | Mother | — | Missouri |
| 12 | Oscar B. Martin | 47 | Brother in Law | Treasurer | Oklahoma |
| 13 | Freda M. Martin | 46 | Sister | — | Nebraska |
| 14 | Anna C. Crutcher | 46 | Housekeeper | Housekeeper | Iowa |
| 15 | Mattie Duff | 53 | Head | — | Nebraska |
| 16 | Dorothy Dickerson | 36 | Daughter | Model | Colorado |
| 17 | Flora Greener | 74 | Mother | — | Ohio |
| 18 | Geo. Milliken | 47 | Lodger | Laborer | Illinois |
| 19 | Grace Milliken | 40 | Lodger | Stenographer | Indiana |
| 20 | Olivia Wallace | 67 | Head | — | Missouri |
| 21 | Axel H. Eldfrick | 62 | Head | Dent Maker | Sweden |
| 22 | Anna Eldfrick | 63 | Wife | — | Sweden |
| 23 | Walter Angerer | 26 | Head | Accountant | Colorado |
| 24 | Eileen Angerer | 23 | Wife | — | Colorado |
| 25 | Marietta Angerer | 1 | Daughter | — | Colorado |
| 26 | Val Johnson | 28 | Head | Shipping Clerk | Oklahoma |
| 27 | Mary Johnson | 27 | Wife | — | Colorado |
| 28 | James Burns | 57 | Father in Law | Fireman | Colorado |
| 29 | Lawrence Burns | 21 | Brother in Law | Maintenance | Colorado |
| 30 | J. Perry August | 30 | Head | Special Agent | Nebraska |
| 31 | Catherine August | 31 | Wife | — | Colorado |
| 32 | Louis August | 22 | Brother | Clerk | Colorado |
| 33 | Thomas Davis | 67 | Head | Night Watchman | Ohio |
| 34 | Herbert Hawley | 38 | Head | Clerk | Nebraska |
| 35 | Oreta F. Hawley | 37 | Wife | — | Nebraska |
| 36 | Robert J. Hawley | 11 | Son | — | Nebraska |
| 37 | Mary Jane Hawley | 10 | Daughter | — | Nebraska |
| 38 | John Payne | 42 | Head | Watchman | Kansas |
| 39 | Ruth Payne | 39 | Wife | — | Nebraska |
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)