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Mary Lambert — 1940 US Census Record
Model Tree available1940 United States Federal Census · Morgan-County, Kentucky
Our Model Tree links this Mary Lambert across the 1920, 1930 and 1940 US Censuses in Morgan-County, Kentucky (XGBoost, ~Confirmed), with identified parents Elizabeth & John — first a spouse (b.~1894), then head of a 9-person household.
Age 46
b. ~1894
Female
Spouse
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Morgan-County, Kentucky |
| Surname | Lambert |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Magisterial Dist 3 |
| 1935 Residence (County) | Morgan |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H 7 |
| 1935 Residence | Same house |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Magisterial Dist 3 |
| Est. Birth Year | ~1894 |
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 |
|---|---|---|---|---|
| Fay Lambert | Daughter | — | 16 | ~1924 |
| Robertta Lambert | Daughter | — | 11 | ~1929 |
| Bethel Lambert | Daughter | — | 18 | ~1922 |
| Kathleen Lambert | Daughter | — | 9 | ~1931 |
| A Lambert | Head | — | 44 | ~1896 |
| Clay Lambert | Son | — | 13 | ~1927 |
| Walter Lambert | Son | — | 19 | ~1921 |
| J Lambert | Son | — | 7 | ~1933 |
| Mary Lambert | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Morgan, Kentucky
Daughter, age 26
Morgan, Kentucky · implied b. ~1894 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lambert |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Morgan, Kentucky
Spouse, age 36
Morgan, Kentucky · implied b. ~1894 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lambert |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 21 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Morgan-County, Kentucky
Spouse, age 46
Morgan-County, Kentucky · implied b. ~1894 — 9 household members
| Surname | Lambert |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Magisterial Dist 3 |
| 1935 Residence (County) | Morgan |
| Class of Worker | 0 |
| Highest Grade | H 7 |
| 1935 Residence | Same house |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 Lambert across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Elizabeth Lambert (~0.60 confidence) and father John Lambert (~0.60 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.6
Mother
Elizabeth Lambert
b. ~1893
Source mother
● Household
· direct · ~0.6
Father
John Lambert
b. ~1893
Source father
● Household
· direct · ~0.6
This person
Anchor record
Mary Lambert
Spouse · 1940 · age 46 · b. ~1894 · Kentucky
★ 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 — Morgan-County, Kentucky
Open full size
1940 US Federal Census — Morgan-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01343-00633)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | May Patrick | 25 | Head | Farmer | Kentucky |
| 42 | Letha Patrick | 6 | Daughter | — | Kentucky |
| 43 | Earl Evans | 3 | Son | — | Kentucky |
| 44 | Ray D. Whitt | 24 | Head | Common Laborer | Kentucky |
| 45 | Letha Whitt | 25 | Wife | — | Kentucky |
| 46 | Donald Whitt | 5 | Son | — | Kentucky |
| 47 | Glorias Whitt | 3 | Daughter | — | Kentucky |
| 48 | Paris D. Whitt | 35 | Head | Farmer | Kentucky |
| 49 | Ida Whitt | 35 | Wife | — | Kentucky |
| 50 | Edgar Whitt | 15 | Son | Farm Labor | Kentucky |
| 51 | Juanita Whitt | 13 | Daughter | — | Kentucky |
| 52 | Henson Whitt | 10 | Son | — | Kentucky |
| 53 | Billy Roger Whitt | 1 | Son | — | Kentucky |
| 54 | Elizabeth Hudson | 67 | Head | — | Ohio |
| 55 | J. R. Abrams | 67 | Head | Farmer | Kentucky |
| 56 | Mary Abrams | 63 | Wife | — | Kentucky |
| 57 | Roderick Abrams | 20 | Son | Farm Labor | Kentucky |
| 58 | J. W. Cassity | 44 | Head | Merchant | Kentucky |
| 59 | Nora E. Cassity | 44 | Wife | — | Virginia |
| 60 | A. V. Lambert | 44 | Head | Tile Plant | Kentucky |
| 61 | Mary Lambert THIS PERSON | 46 | Wife | — | Kentucky |
| 62 | Walter Lambert | 19 | Son | Farm Labor | Kentucky |
| 63 | Bethel Lambert | 18 | Daughter | — | Kentucky |
| 64 | Fay Lambert | 16 | Daughter | — | Kentucky |
| 65 | Clay Lambert | 13 | Son | — | Kentucky |
| 66 | Robertta Lambert | 11 | Daughter | — | Kentucky |
| 67 | Kathleen Lambert | 9 | Daughter | — | Kentucky |
| 68 | J. M. Lambert | 7 | Son | — | Kentucky |
| 69 | Blaine Burchett | 28 | Head | Watchman | Kentucky |
| 70 | Edith Burchett | 20 | Wife | — | Kentucky |
| 71 | Willie Callahan | 42 | Head | Farmer | Kentucky |
| 72 | Mayme Callahan | 29 | Wife | — | Kentucky |
| 73 | Elbert Callahan | 14 | Son | — | Kentucky |
| 74 | Billy Callahan | 11 | Son | — | Kentucky |
| 75 | Patricia Callahan | 3 | Daughter | — | Kentucky |
| 76 | Perry Jack Callahan | 2 | Son | — | Kentucky |
| 77 | Homer Casterline | 33 | Head | Farmer | Kentucky |
| 78 | Ruby Casterline | 30 | Wife | — | Kentucky |
| 79 | Kathleen Casterline | 10 | Daughter | — | Kentucky |
| 80 | W. D. Mccallister | 83 | Grandfather | — | Kentucky |
Pedigree Summary
Mary
Gen 1 · 2 parents
~0.6
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)