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Mary Briggs — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Montrose-County, Colorado
Our Model Tree links this Mary Briggs across the 1930 and 1940 US Censuses in Montrose-County, Colorado (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 9-person household.
Age 14
b. ~1926
Female
Daughter
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Montrose-County, Colorado |
| Surname | Briggs |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Precinct 11 Maher |
| 1935 Residence (County) | Montrose |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same Place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Township / Ward | Precinct 11 Maher |
| Est. Birth Year | ~1926 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| James Briggs | Son | — | 16 | ~1924 |
| Willard Briggs | Son | — | 23 | ~1917 |
| Charlie Briggs | Other | — | 67 | ~1873 |
| Thomas Briggs | Son | — | 15 | ~1925 |
| Josephine Briggs | Spouse | — | 47 | ~1893 |
| Maxine Briggs | Daughter | — | 18 | ~1922 |
| Mary Briggs | Daughter | — | 14 | ~1926 |
| Harry Briggs | Head | — | 52 | ~1888 |
| Charlie Briggs | Son | — | 12 | ~1928 |
Census Appearances
1930
Montrose, Colorado
Daughter, age 3
Montrose, Colorado · implied b. ~1927 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Briggs |
| Given Name | Mary F |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Colorado |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Montrose-County, Colorado
Daughter, age 14
Montrose-County, Colorado · implied b. ~1926 — 9 household members
| Surname | Briggs |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Precinct 11 Maher |
| 1935 Residence (County) | Montrose |
| Class of Worker | 0 |
| Highest Grade | 7 |
| 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 Briggs across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Briggs
Daughter · 1940 · age 14 · b. ~1926 · Colorado
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Sibling
Willard Briggs
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Briggs
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charlie Briggs
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Briggs
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maxine Briggs
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Montrose-County, Colorado
Open full size
1940 US Federal Census — Montrose-County, Colorado
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00472-00248)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Leonard Busby | 38 | Head | Operator | Colorado |
| 2 | Ruby Busby | 34 | Wife | Teacher | Kansas |
| 3 | Miriam Busby | 6 | Daughter | — | California |
| 4 | Burtis Ayer | 37 | Head | Laborer | Colorado |
| 5 | Mary Ayer | 34 | Wife | — | Colorado |
| 6 | Mary Helen Ayer | 10 | Daughter | — | Colorado |
| 7 | Henrietta Ayer | 8 | Daughter | — | Colorado |
| 8 | Margret Ayer | 6 | Daughter | — | Colorado |
| 9 | Audrey June Ayer | 3 | Daughter | — | Colorado |
| 10 | Harry G. Briggs | 52 | Head | Farm Operator | Illinois |
| 11 | Josephine Briggs | 47 | Wife | House Work | Colorado |
| 12 | Willard Briggs | 23 | Son | Farm Laborer | Colorado |
| 13 | Maxine Briggs | 18 | Daughter | — | Colorado |
| 14 | James Briggs | 16 | Son | — | Colorado |
| 15 | Thomas Briggs | 15 | Son | — | Colorado |
| 16 | Mary Briggs THIS PERSON | 14 | Daughter | — | Colorado |
| 17 | Charlie Briggs | 12 | Son | — | Colorado |
| 18 | Charlie H. Briggs | 67 | Uncle | Farm Operator | Illinois |
| 19 | Jacob M. Meek | 57 | Head | Farm Operator | Kansas |
| 20 | Mildred Meek | 51 | Wife | House Work | Canada |
| 21 | Carton Meek | 26 | Son | Farm Operator | Colorado |
| 22 | Gordon Meek | 20 | Son | Farm Laborer | Colorado |
| 23 | Chas H. Stark | 77 | Father | Minister | Canada |
| 24 | Gayle Brown | 21 | Hired Man | Laborer | Kansas |
| 25 | Charlie Piper | 55 | Head | Farm Operator | Ohio |
| 26 | Claudine Piper | 34 | Wife | House Work | Colorado |
| 27 | Chas Herbert Piper | 12 | Son | — | Colorado |
| 28 | Love June Piper | 11 | Daughter | — | Colorado |
| 29 | Theresa Rae Piper | 8 | Daughter | — | Colorado |
| 30 | Andrew Lee Piper | 6 | Son | — | Colorado |
| 31 | Crystal Dawn Piper | 4 | Daughter | — | Colorado |
| 32 | Myrtle Pauline Piper | 2 | Daughter | — | Colorado |
| 33 | Chris P. Jensen | 43 | Head | Cook | Denmark |
| 34 | Roy Cotton | 56 | Head | Farm Operator | Colorado |
| 35 | Emma Cotton | 49 | Wife | House Work | Indiana |
| 36 | Bruce Cotton | 21 | Son | Farm Laborer | Colorado |
| 37 | Clayton Cotton | 18 | Son | Farm Laborer | Colorado |
| 38 | Ollie May Cotton | 10 | Daughter | — | Colorado |
| 39 | T. P. Allyn | 41 | Head | Farm Operator | Arizona |
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)