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Mary Lamb — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Fayette-County, Kentucky
Our Model Tree links this Mary Lamb across the 1930 and 1940 US Censuses in Fayette-County, Kentucky (XGBoost, ~Confirmed) — first a daughter (b.~1916), then head of a 9-person household.
Age 24
b. ~1916
Female
Daughter
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Fayette-County, Kentucky |
| Surname | Lamb |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (County) | Fayette |
| Additional Details | |
| Industry | 0 |
| Hours Worked | 8 |
| Highest Grade | No 6 |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Mag Dist 4 |
| Est. Birth Year | ~1916 |
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 |
|---|---|---|---|---|
| Maude Lamb | Daughter | — | 21 | ~1919 |
| Charles Lamb | Son | — | 15 | ~1925 |
| Frances Lamb | Daughter | — | 13 | ~1927 |
| Richard Lamb | Head | — | 49 | ~1891 |
| James Lamb | Son | — | 17 | ~1923 |
| Mary Lamb | Daughter | — | 24 | ~1916 |
| Vernon Lamb | Son | — | 10 | ~1930 |
| Walter Lamb | Son | — | 19 | ~1921 |
| Annabelle Lamb | Spouse | — | 45 | ~1895 |
Census Appearances
1930
Fayette, Kentucky
Daughter, age 14
Fayette, Kentucky · implied b. ~1916 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lamb |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Fayette-County, Kentucky
Daughter, age 24
Fayette-County, Kentucky · implied b. ~1916 — 9 household members
| Surname | Lamb |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (County) | Fayette |
| Industry | 0 |
| Hours Worked | 8 |
| Highest Grade | No 6 |
| 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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Lamb
Daughter · 1940 · age 24 · b. ~1916 · Kentucky
★ You are viewing this record
Sibling
James Lamb
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vernon Lamb
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Lamb
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maude Lamb
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Lamb
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Lamb
Sibling · 1940 · age 19
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 — Fayette-County, Kentucky
Open full size
1940 US Federal Census — Fayette-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01303-01079)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joy J. West | 4 | Daughter | — | Kentucky |
| 2 | Odus Jr West | 12 | Son | — | Kentucky |
| 3 | Nora Griffith | 33 | Head | Farmer | Kentucky |
| 4 | Lena Griffith | 29 | Wife | — | Kentucky |
| 5 | Nora Jr Ab Griffith | 11 | Son | — | Kentucky |
| 6 | Gwendolyn Griffith | 9 | Daughter | — | Kentucky |
| 7 | Thomas Griffith | 39 | Brother | Farm Labor | Kentucky |
| 8 | Harvey Pelfrey | 44 | Head | Carpenter Foreman | Kentucky |
| 9 | Rose Pelfrey | 42 | Wife | — | Kentucky |
| 10 | Harvey Jr. Pelfrey | 18 | Son | Carpenter Apprentice | Kentucky |
| 11 | Dejean Pelfrey | 15 | Daughter | — | Kentucky |
| 12 | Roy Pelfrey | 14 | Son | — | Kentucky |
| 13 | Juanita Pelfrey | 12 | Daughter | — | Kentucky |
| 14 | Bobby Pelfrey | 7 | Son | — | Kentucky |
| 15 | Wayne Pelfrey | 5 | Son | — | Kentucky |
| 16 | Porter Pelfrey | 3 | Son | — | Kentucky |
| 17 | Gerald Pelfrey | 0 | Son | — | Kentucky |
| 18 | Arthur Pelfrey | 25 | Brother | — | Kentucky |
| 19 | Amos Callihan | 26 | Head | Farm Labor | Kentucky |
| 20 | Lillian Callihan | 27 | Wife | — | Kentucky |
| 21 | Ruth E Callihan | 3 | Daughter | — | Kentucky |
| 22 | Hickey Cardwell | 52 | Head | Foreman | Kentucky |
| 23 | Mary J. Cardwell | 50 | Wife | — | Kentucky |
| 24 | Joseph Plowman | 48 | Head | Farm Labor | Kentucky |
| 25 | Mary Plowman | 28 | Wife | — | Kentucky |
| 26 | John Whitlock | 62 | Head | Farmer | Kentucky |
| 27 | Margaret Whitlock | 34 | Wife | — | Kentucky |
| 28 | Berkley Prather | 37 | Head | Farmer | Kentucky |
| 29 | Elizabeth Prather | 38 | Wife | — | Kentucky |
| 30 | June F Prather | 12 | Daughter | — | Kentucky |
| 31 | Berkley Jr Prather | 11 | Son | — | Kentucky |
| 32 | Richard Lamb | 49 | Head | Farmer | Kentucky |
| 33 | Annabelle Lamb | 45 | Wife | — | Kentucky |
| 34 | Mary E Lamb THIS PERSON | 24 | Daughter | — | Kentucky |
| 35 | Maude Lamb | 21 | Daughter | — | Kentucky |
| 36 | Walter Lamb | 19 | Son | Farm Labor | Kentucky |
| 37 | James Lamb | 17 | Son | Farm Labor | Kentucky |
| 38 | Charles Lamb | 15 | Son | Farm Labor | Kentucky |
| 39 | Frances Lamb | 13 | Daughter | — | Kentucky |
| 40 | Vernon C Lamb | 10 | Son | — | 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)