MC
Mildred Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Morgan-County, Utah
Our Model Tree links this Mildred Clark across the 1930 and 1940 US Censuses in Morgan-County, Utah (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 10-person household.
Age 19
b. ~1921
Female
Daughter
Born: Utah
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Morgan-County, Utah |
| Surname | Clark |
| Given Name | Mildred |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Morgan City |
| 1935 Residence (County) | Morgan |
| Additional Details | |
| Highest Grade | C 1 |
| 1935 Residence | Same place |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Township / Ward | Morgan City |
| Est. Birth Year | ~1921 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mildred | Age | Birth yr |
|---|---|---|---|---|
| Bertel Clark | Daughter | — | 21 | ~1919 |
| Carol Clark | Daughter | — | 17 | ~1923 |
| Mildred Clark | Daughter | — | 19 | ~1921 |
| Jean Clark | Daughter | — | 7 | ~1933 |
| Emma Clark | Daughter | — | 15 | ~1925 |
| Wallace Clark | Head | — | 52 | ~1888 |
| Leon Clark | Son | — | 12 | ~1928 |
| Harlan Clark | Son | — | 25 | ~1915 |
| Marden Clark | Son | — | 23 | ~1917 |
| Jean Clark | Spouse | — | 50 | ~1890 |
Census Appearances
1930
Morgan, Utah
Daughter, age 8
Morgan, Utah · implied b. ~1922 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Utah |
| Mother's Birthplace | Utah |
| Occupation | none |
| Can Read/Write | No |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Morgan-County, Utah
Daughter, age 19
Morgan-County, Utah · implied b. ~1921 — 10 household members
| Surname | Clark |
| Given Name | Mildred |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Morgan City |
| 1935 Residence (County) | Morgan |
| Highest Grade | C 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 Mildred Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mildred Clark
Daughter · 1940 · age 19 · b. ~1921 · Utah
★ You are viewing this record
Sibling
Emma Clark
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harlan Clark
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carol Clark
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leon Clark
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marden Clark
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Clark
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bertel Clark
Sibling · 1940 · age 21
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 — Morgan-County, Utah
Open full size
1940 US Federal Census — Morgan-County, Utah
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04215-00046)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | E. E. Christensen | 58 | lodger | Dentist | Utah |
| 2 | Glen W. Butters | 30 | head | Farmer | Utah |
| 3 | Mae O. Butters | 27 | wife | — | Utah |
| 4 | La Delle Butters | 7 | daughter | — | Utah |
| 5 | Sherrie Butters | 4 | daughter | — | Utah |
| 6 | J. E. Butters | 77 | head | — | England |
| 7 | Isabelle Butters | 74 | wife | — | Utah |
| 8 | Roscoe C. Brough | 49 | head | Laborer | Utah |
| 9 | Afton L. Brough | 47 | wife | — | Utah |
| 10 | James R. Rich | 63 | head | — | Utah |
| 11 | Jenna Rich | 57 | wife | — | Utah |
| 12 | Frank Rich | 29 | son | Store Clerk | Utah |
| 13 | Margaret Rawle | 22 | head | — | Utah |
| 14 | Geo. Neuteboom | 25 | grandson | Sign Painter | Utah |
| 15 | Parley O. Rich | 46 | head | Blacksmith | Utah |
| 16 | Ada Rich | 43 | wife | — | Utah |
| 17 | Dale Rich | 21 | son | Laborer | Utah |
| 18 | Arvill Rich | 16 | son | — | Utah |
| 19 | Verla Rich | 14 | daughter | — | Utah |
| 20 | Chas. W. Stuart | 61 | head | Laborer | Utah |
| 21 | Ann Stuart | 53 | wife | — | Utah |
| 22 | I. J. Stuart | 29 | son | Laborer | Utah |
| 23 | Paul Stuart | 27 | son | Laborer | Utah |
| 24 | Norris Stuart | 20 | son | — | Utah |
| 25 | Catherine Stuart | 18 | daughter | — | Utah |
| 26 | Gale O'Driscoll | 37 | head | Foreman Of Laborers | Utah |
| 27 | Ila O'Driscoll | 36 | wife | — | Canada |
| 28 | Gale J. O'Driscoll | 4 | son | — | Utah |
| 29 | Wallace P. Clark | 52 | head | Farmer | Utah |
| 30 | Jean B. Clark | 50 | wife | — | Utah |
| 31 | Harlan W. Clark | 25 | son | Abstracter | Utah |
| 32 | Marden Clark | 23 | son | Truck Driver | Utah |
| 33 | Bertel Clark | 21 | daughter | Stenographer | Utah |
| 34 | Mildred Clark THIS PERSON | 19 | daughter | — | Utah |
| 35 | Carol Clark | 17 | daughter | — | Utah |
| 36 | Emma Clark | 15 | daughter | — | Utah |
| 37 | Leon J. Clark | 12 | son | — | Utah |
| 38 | Jean Clark | 7 | daughter | — | Utah |
| 39 | Glendon C. Porter | 30 | head | Laborer | Utah |
| 40 | Mildred Porter | 24 | wife | — | Utah |
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)