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Mary Lamb — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Madison-County, Kentucky
Our Model Tree links this Mary Lamb across the 1920, 1930 and 1940 US Censuses in Madison-County, Kentucky (XGBoost, ~Confirmed) — first a head (b.~1901), then head of a 2-person household.
Age 39
b. ~1901
Female
Head
Born: Kentucky
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Madison-County, Kentucky |
| Surname | Lamb |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Widowed |
| Birthplace | Kentucky |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Madison |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Magisterial Dist 1 |
| Est. Birth Year | ~1901 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Joseph Lamb | Son | — | 20 | ~1920 |
| Mary Lamb | Head | — | 39 | ~1901 |
Census Appearances
1920
Madison, Kentucky
Spouse, age 19
Madison, Kentucky · implied b. ~1901 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lamb |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| 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
Madison, Kentucky
Other, age 29
Madison, Kentucky · implied b. ~1901 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lamb |
| Given Name | Mary |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 15 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Madison-County, Kentucky
Head, age 39
Madison-County, Kentucky · implied b. ~1901 — 2 household members
| Surname | Lamb |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Widowed |
| Birthplace | Kentucky |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Madison |
| Highest Grade | No 5 |
| 1935 Residence | Kentucky |
| 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 Lamb across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Lamb
Head · 1940 · age 39 · b. ~1901 · 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 — Madison-County, Kentucky
Open full size
1940 US Federal Census — Madison-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01337-00628)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marshall N. Johnson | 38 | Head | Bricklayer | Kentucky |
| 2 | Hallie Davis Johnson | 38 | Wife | — | Kentucky |
| 3 | Marshall A. Johnson | 10 | Son | — | Kentucky |
| 4 | Harold Davis Johnson | 7 | Son | — | Kentucky |
| 5 | Albert Powell | 24 | Head | Laborer | Kentucky |
| 6 | Minnie Powell | 29 | Wife | — | Kentucky |
| 7 | Hallie Marie Powell | 11 | Daughter | — | Kentucky |
| 8 | Harold Powell | 8 | Son | — | Kentucky |
| 9 | Anna Powell | 6 | Daughter | — | Kentucky |
| 10 | Russell Powell | 2 | Son | — | Kentucky |
| 11 | Robert Bigg | 34 | Head | Laborer | Kentucky |
| 12 | Mabel Bigg | 32 | Wife | — | Kentucky |
| 13 | Curtis Bigg | 14 | Son | — | Kentucky |
| 14 | Frances Bigg | 12 | Daughter | — | Kentucky |
| 15 | Martha Bigg | 7 | Daughter | — | Kentucky |
| 16 | Otis Bigg | 4 | Son | — | Kentucky |
| 17 | Nila Powell | 58 | Head | — | Kentucky |
| 18 | Fannie Powell | 28 | Daughter | — | Kentucky |
| 19 | Luther Powell | 29 | Son | Laborer | Kentucky |
| 20 | Dixie Powell | 25 | Daughter-in-law | — | Kentucky |
| 21 | Hiram Robert Powell | 7 | Son | — | Kentucky |
| 22 | John Clayton Powell | 1 | Son | — | Kentucky |
| 23 | Jimmie Pug | 29 | Head | Laborer | Kentucky |
| 24 | Mary Pug | 25 | Wife | — | Kentucky |
| 25 | Maxine Pug | 6 | Daughter | — | Kentucky |
| 26 | Girdine Pug | 4 | Daughter | — | Kentucky |
| 27 | Shirley Fay Pug | 1 | Daughter | — | Kentucky |
| 28 | Walter Powell | 36 | Head | Laborer | Kentucky |
| 29 | Maud Powell | 36 | Wife | — | Kentucky |
| 30 | Harold Jr. Powell | 12 | Son | — | Kentucky |
| 31 | Christine Powell | 7 | Daughter | — | Kentucky |
| 32 | Freda Powell | 1 | Daughter | — | Kentucky |
| 33 | Alize Jones | 54 | Head | — | Kentucky |
| 34 | Jesse Jones | 25 | Son | Laborer | Kentucky |
| 35 | Gracie Ambres | 28 | Daughter | — | Kentucky |
| 36 | Elsie Ambres | 10 | Daughter | — | Kentucky |
| 37 | Vivian Ambres | 8 | Daughter | — | Kentucky |
| 38 | Margaret Ambres | 7 | Daughter | — | Kentucky |
| 39 | Mary Lamb THIS PERSON | 39 | Head | — | Kentucky |
| 40 | Joseph Lamb | 20 | Son | Laborer | Kentucky |
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)