MC
Mary Chambers — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cache-County, Utah
Our Model Tree links this Mary Chambers across the 1930 and 1940 US Censuses in Cache-County, Utah (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 9-person household.
Age 16
b. ~1924
Female
Daughter
Born: Utah
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cache-County, Utah |
| Surname | Chambers |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Smithfield city |
| 1935 Residence (County) | Cache |
| Additional Details | |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Township / Ward | Smithfield City |
| Est. Birth Year | ~1924 |
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 |
|---|---|---|---|---|
| Aileen Chambers | Daughter | — | 18 | ~1922 |
| Lois Chambers | Daughter | — | 14 | ~1926 |
| Ruth Chambers | Daughter | — | 10 | ~1930 |
| Faye Chambers | Daughter | — | 9 | ~1931 |
| Mary Chambers | Daughter | — | 16 | ~1924 |
| George Chambers | Head | — | 46 | ~1894 |
| Dennis Chambers | Son | — | 20 | ~1920 |
| Ferris Chambers | Son | — | 24 | ~1916 |
| Lucy Chambers | Spouse | — | 44 | ~1896 |
Census Appearances
1930
Cache, Utah
Daughter, age 6
Cache, Utah · implied b. ~1924 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chambers |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Utah |
| Mother's Birthplace | Utah |
| Occupation | none |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Cache-County, Utah
Daughter, age 16
Cache-County, Utah · implied b. ~1924 — 9 household members
| Surname | Chambers |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Smithfield city |
| 1935 Residence (County) | Cache |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
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 Chambers across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Chambers
Daughter · 1940 · age 16 · b. ~1924 · Utah
★ You are viewing this record
Sibling
Faye Chambers
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Chambers
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Aileen Chambers
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dennis Chambers
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lois Chambers
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ferris Chambers
Sibling · 1940 · age 24
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 — Cache-County, Utah
Open full size
1940 US Federal Census — Cache-County, Utah
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-04210-00785)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ruth Irene Thornley | 4 | Daughter | — | Utah |
| 2 | Suzanne Thornley | 1 | Daughter | — | Utah |
| 3 | Isabel B. Bingham | 68 | Head | — | Utah |
| 4 | Eunice Bingham | 24 | Daughter | — | Utah |
| 6 | L. Calder Smith | 47 | Head | Teacher | Utah |
| 7 | Veda A. Smith | 49 | Wife | Teacher | Utah |
| 8 | L. Calder Jr. Smith | 21 | Son | Salesman | Utah |
| 9 | Mary Smith | 20 | Daughter | Entertainment | Utah |
| 10 | Dona Claire Smith | 15 | Daughter | — | Utah |
| 11 | Parley C. Chambers | 56 | Son-in-law | Farm Helper | Utah |
| 12 | George Chambers | 46 | Head | Farmer | Utah |
| 13 | Lucy B. Chambers | 44 | Wife | — | Utah |
| 14 | Ferris Chambers | 24 | Son | New Worker | Utah |
| 15 | Dennis Chambers | 20 | Son | Farm Helper | Utah |
| 16 | Aileen Chambers | 18 | Daughter | — | Utah |
| 17 | Mary Chambers THIS PERSON | 16 | Daughter | — | Utah |
| 18 | Lois Chambers | 14 | Daughter | — | Utah |
| 19 | Ruth Chambers | 10 | Daughter | — | Utah |
| 20 | Faye Chambers | 9 | Daughter | — | Utah |
| 21 | Lawrence Nordberg | 33 | Head | Teamster | Utah |
| 22 | John S. Goodridge | 50 | Head | Farmer | England |
| 23 | Annie C. Goodridge | 47 | Wife | — | England |
| 24 | Jack F. Goodridge | 21 | Son | New Worker | Utah |
| 25 | June Goodridge | 16 | Daughter | — | Utah |
| 26 | A. Ross Goodridge | 13 | Son | — | Utah |
| 27 | Andrew Garnet | 71 | Head | — | Utah |
| 28 | Ellen B. Garnet | 74 | Wife | — | England |
| 29 | Nathan B. Griffith | 27 | Head | Bridge Carpenter | Utah |
| 30 | Dorothy T. Griffith | 22 | Wife | — | Utah |
| 31 | Helen Faye Griffith | 5 | Daughter | — | Utah |
| 32 | M. Scott Griffith | 1 | Son | — | Utah |
| 33 | Infant Griffith | 0 | Daughter | — | Utah |
| 34 | Leo L. Low | 29 | Head | Teamster | Utah |
| 35 | Selena A. Low | 24 | Wife | Telephone Operator | Utah |
| 36 | Leo Thomas Low | 2 | Son | — | Utah |
| 37 | Sabina Scrowther | 76 | Head | — | Utah |
| 38 | Ruby B. Scrowther | 39 | Head | Book Keeper | Idaho |
| 39 | De Mar Scrowther | 22 | Son | Rail Road Brakeman | Idaho |
| 40 | Berk Scrowther | 18 | Son | New Worker | Idaho |
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)