MW
Mary Webster — 1940 US Census Record
Model Tree available1940 United States Federal Census · Salt-Lake-County, Utah
Our Model Tree links this Mary Webster across the 1920, 1930 and 1940 US Censuses in Salt-Lake-County, Utah (XGBoost, ~Confirmed), with identified parents Lewis & Louis — first a daughter (b.~1912), then head of a 5-person household.
Age 28
b. ~1912
Female
Daughter
Born: Idaho
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Salt-Lake-County, Utah |
| Surname | Webster |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | Sandy City |
| 1935 Residence (County) | Salt Lake |
| Additional Details | |
| Occupation | Checker |
| Industry | Laundry |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 204 |
| Highest Grade | G 8 |
| 1935 Residence | Utah |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
| Occupation | Checker |
| Township / Ward | Sandy City |
| Est. Birth Year | ~1912 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Webster | Daughter | — | 28 | ~1912 |
| Marlen Webster | Son | — | 9 | ~1931 |
| Betty Webster | Daughter | — | 15 | ~1925 |
| Mary Webster | Spouse | — | 54 | ~1886 |
| Lewis Webster | Head | — | 55 | ~1885 |
Census Appearances
1920
Salt Lake, …
Daughter, age 8
Salt Lake, Utah · implied b. ~1912 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Webster |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Idaho |
| Father's Birthplace | Utah |
| Mother's Birthplace | Utah |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
1930
Salt Lake, …
Daughter, age 18
Salt Lake, Utah · implied b. ~1912 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Webster |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Idaho |
| Father's Birthplace | Utah |
| Mother's Birthplace | Utah |
| Occupation | Laundress |
| Industry | Laundry |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
1940
Salt-Lake-County, Utah
Daughter, age 28
Salt-Lake-County, Utah · implied b. ~1912 — 5 household members
| Surname | Webster |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | Sandy City |
| 1935 Residence (County) | Salt Lake |
| Occupation | Checker |
| Industry | Laundry |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 204 |
| Highest Grade | G 8 |
| 1935 Residence | Utah |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
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 Webster across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Lewis Webster (~0.92 confidence) and father Louis Webster (~0.92 confidence) and mother Mary Webster (~0.92 confidence) and mother Mary Webster (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Lewis Webster
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Louis Webster
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Mary Webster
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Mary Webster
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Webster
Daughter · 1940 · age 28 · b. ~1912 · Utah
★ You are viewing this record
Sibling
Betty Webster
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marlen Webster
Sibling · 1940 · age 9
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 — Salt-Lake-County, Utah
Open full size
1940 US Federal Census — Salt-Lake-County, Utah
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04216-00322)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hal Whitman | 13 | Son | — | Utah |
| 2 | Eliel Whitman | 11 | Son | — | Utah |
| 3 | Glen Whitman | 9 | Son | — | Utah |
| 4 | Harriet Parker | 63 | Head | — | Utah |
| 5 | Ada Parker | 38 | Daughter | Telephone Operator | Utah |
| 6 | Lillie Parker | 34 | Daughter | Merchant (Wholesale) | Utah |
| 7 | Lewis E. Webster | 55 | Head | Sheet Metal Worker | Utah |
| 8 | Mary F. Webster | 54 | Wife | — | Utah |
| 9 | Mary Webster THIS PERSON | 28 | Daughter | Checker | Idaho |
| 10 | Betty Webster | 15 | Daughter | — | Utah |
| 11 | Marlen Webster | 9 | Son | — | Utah |
| 12 | James P. Jensen | 58 | Head | Owner Store | Utah |
| 13 | Belle G. Jensen | 56 | Wife | — | Georgia |
| 14 | Don A. Jensen | 23 | Son | Returned From Mission | Utah |
| 15 | Carma Rae Jensen | 15 | Granddaughter | — | Utah |
| 16 | Martin Messner | 41 | Head | Musician | Austria |
| 17 | Ruth Messner | 40 | Wife | — | North Dakota |
| 18 | Don Messner | 20 | Head | Laborer | North Dakota |
| 19 | Alta Messner | 17 | Wife | — | Utah |
| 20 | Maud Vincent | 58 | Head | — | Utah |
| 21 | Margaret Vincent | 37 | Daughter | Seamstress | Utah |
| 22 | Mildred Vincent | 24 | Daughter | Contometer Operator | Utah |
| 23 | Helen Vincent | 22 | Daughter | Clerk | Utah |
| 24 | Archie R. Gardner | 58 | Head | Cashier | Utah |
| 25 | Violet Gardner | 58 | Wife | — | Utah |
| 26 | Charles H. Crapo | 49 | Head | Farmer | Utah |
| 27 | Hazel Crapo | 49 | Wife | — | Georgia |
| 28 | Marvin Crapo | 17 | Son | — | Utah |
| 29 | Alice Christian | 72 | Mother-in-law | — | Georgia |
| 30 | John Johnson | 47 | Head | Prospector | South Carolina |
| 31 | Edith Johnson | 40 | Wife | — | Sweden |
| 32 | Eris Johnson | 15 | Daughter | — | Utah |
| 33 | Don Johnson | 12 | Son | — | Utah |
| 34 | Elizabeth Johnson | 10 | Daughter | — | Utah |
| 35 | Eleanor Johnson | 8 | Daughter | — | Utah |
| 36 | Evan Johnson | 3 | Son | — | Utah |
| 37 | Charles Anderson | 76 | Head | Shoe Maker | Norway |
| 38 | Margaret Anderson | 67 | Wife | — | England |
| 39 | Andrew Dumas | 41 | Head | Produce Wholesaler | Greece |
| 40 | Irene Dumas | 31 | Wife | — | Utah |
Pedigree Summary
Mary + 2 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)