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Mary Morgan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Boulder-County, Colorado
Our Model Tree links this Mary Morgan across the 1920, 1930 and 1940 US Censuses in Boulder-County, Colorado (XGBoost, ~Confirmed) — first a spouse (b.~1899), then head of a 3-person household.
Age 41
b. ~1899
Female
Spouse
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Boulder-County, Colorado |
| Surname | Morgan |
| Given Name | Mary E. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Weld |
| Additional Details | |
| Class of Worker | 960 |
| Hours Worked | 5 |
| Highest Grade | No |
| 1935 Residence | Colorado |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Township / Ward | Lafayette |
| Est. Birth Year | ~1899 |
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 |
|---|---|---|---|---|
| Wm Morgan | Head | — | 45 | ~1895 |
| Wm Morgan | Son | — | 20 | ~1920 |
| Mary Morgan | Spouse | — | 41 | ~1899 |
Census Appearances
1920
Boulder, Colorado
Spouse, age 22
Boulder, Colorado · implied b. ~1898 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Morgan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Colorado |
| Father's Birthplace | Bohemia |
| Mother's Birthplace | Bohemia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Boulder, Colorado
Spouse, age 31
Boulder, Colorado · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Morgan |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Colorado |
| Age at First Marriage | 18 |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Boulder-County, Colorado
Spouse, age 41
Boulder-County, Colorado · implied b. ~1899 — 3 household members
| Surname | Morgan |
| Given Name | Mary E. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Weld |
| Class of Worker | 960 |
| Hours Worked | 5 |
| Highest Grade | No |
| 1935 Residence | Colorado |
| 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 Morgan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Morgan
Spouse · 1940 · age 41 · b. ~1899 · Colorado
★ 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 — Boulder-County, Colorado
Open full size
1940 US Federal Census — Boulder-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00457-00146)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dorothy Williams | 24 | daughter | — | Colorado |
| 42 | Earl Williams | 35 | Brother | School-Teacher | Colorado |
| 43 | George T. Oehlkers | 32 | Head | Meter-Man | Colorado |
| 44 | Martha T. Oehlkers | 34 | wife | — | Colorado |
| 45 | Walter Oehlkers | 7 | son | — | Colorado |
| 46 | Joyce L. Oehlkers | 3 | daughter | — | Colorado |
| 47 | George Bregard | 62 | head | — | France |
| 48 | Hanna Bregard | 66 | wife | — | France |
| 49 | Joseph Bagdones | 34 | head | Miner | Scotland |
| 50 | Yola Bagdones | 29 | wife | — | Colorado |
| 51 | Patty D. Bagdones | 3 | daughter | — | Colorado |
| 52 | Billie Joe Bagdones | 0 | son | — | Colorado |
| 53 | Louis Sands | 40 | head | Proprietor | Colorado |
| 54 | Emily Sands | 19 | daughter | Bookkeeper | Colorado |
| 55 | Wm. J. Morgan | 45 | head | Office Clerk | Wales |
| 56 | Mary E. Morgan THIS PERSON | 41 | wife | — | Colorado |
| 57 | Wm. K. Morgan | 20 | son | Canvassor | Colorado |
| 58 | John B. Hurt | 43 | head | Dentist | Tennessee |
| 59 | Miranda Hurt | 35 | wife | — | Colorado |
| 60 | Dene Lee Hurt | 12 | daughter | — | Colorado |
| 61 | Jack Hurt | 9 | son | — | Colorado |
| 62 | Elizabeth Kasage | 47 | head | — | Hungary |
| 63 | Andrew Kasage | 27 | son | Office Clerk | Colorado |
| 64 | Ernest Kasage | 24 | son | Office Clerk | Colorado |
| 65 | Olga Kasage | 22 | daughter | Clerk | Colorado |
| 66 | Bertha Kasage | 19 | daughter | — | Colorado |
| 67 | Helen Kasage | 17 | daughter | — | Colorado |
| 68 | Jimmie Kasage | 14 | son | — | Colorado |
| 69 | Leland H. Moore | 33 | head | Proprietor | Nebraska |
| 70 | Vivian R. Moore | 35 | wife | — | Nebraska |
| 71 | Barbara L. Moore | 10 | daughter | — | Nebraska |
| 72 | Chas. L. Grief | 51 | head | Owner | Kansas |
| 73 | Viola E. Grief | 36 | wife | — | Minnesota |
| 74 | Donald R. Erickson | 18 | step-son | — | Colorado |
| 75 | Henry H. Erickson | 16 | step-son | — | Colorado |
| 76 | John E. Roberts | 60 | head | Helper | Nebraska |
| 77 | Rachel E. Roberts | 52 | wife | — | Iowa |
| 78 | Ray F. Roberts | 25 | son | — | Colorado |
| 79 | Frank G. Wootton | 54 | head | Mechanic | Colorado |
| 80 | Willie M. Wootton | 50 | wife | — | Texas |
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)