ML
Mary Lamb — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Osage-County, Missouri
Our Model Tree links this Mary Lamb across the 1930 and 1940 US Censuses in Osage-County, Missouri (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 13-person household.
Age 17
b. ~1923
Female
Daughter
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Osage-County, Missouri |
| Surname | Lamb |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Benton Township |
| 1935 Residence (County) | Osage |
| Additional Details | |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Benton Township |
| Est. Birth Year | ~1923 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Rhoda Lamb | Spouse | — | 39 | ~1901 |
| Hada Lamb | Daughter | — | 2 | ~1938 |
| Paul Lamb | Son | — | 14 | ~1926 |
| Charles Lamb | Son | — | 9 | ~1931 |
| Mary Lamb | Daughter | — | 17 | ~1923 |
| Carline Lamb | Daughter | — | 13 | ~1927 |
| James Lamb | Son | — | ~1940 | |
| Dale Lamb | Son | — | 16 | ~1924 |
| Esther Lamb | Daughter | — | 10 | ~1930 |
| Mattie Lamb | Daughter | — | 4 | ~1936 |
| J Lamb | Head | — | 41 | ~1899 |
| Walter Lamb | Son | — | 12 | ~1928 |
| Melvin Lamb | Son | — | 7 | ~1933 |
Census Appearances
1930
Osage, Missouri
Daughter, age 7
Osage, Missouri · implied b. ~1923 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lamb |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Osage-County, Missouri
Daughter, age 17
Osage-County, Missouri · implied b. ~1923 — 13 household members
| Surname | Lamb |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Benton Township |
| 1935 Residence (County) | Osage |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 17 · b. ~1923 · Missouri
★ You are viewing this record
Sibling
Hada Lamb
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Lamb
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carline Lamb
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Melvin Lamb
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Lamb
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Lamb
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Lamb
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dale Lamb
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Esther Lamb
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mattie Lamb
Sibling · 1940 · age 4
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 — Osage-County, Missouri
Open full size
1940 US Federal Census — Osage-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02135-00032)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John (X) Mcclure | 63 | Head | Operator | Illinois |
| 2 | Gertrude Mcclure | 70 | Wife | — | Missouri |
| 3 | Cluss Jarvis | 31 | Head | Laborer Road | Missouri |
| 4 | Laura Jarvis | 25 | Wife | — | Missouri |
| 5 | Lloyd Jarvis | 4 | Son | — | Missouri |
| 6 | Fred Jarvis | 3 | Son | — | Missouri |
| 7 | Daniel (X) Coffelt | 72 | Head | Operator | Missouri |
| 8 | Lucy Coffelt | 48 | Daughter | Operator | Missouri |
| 9 | Daniel Jr. Coffelt | 23 | Grandson | Teacher | Missouri |
| 10 | Dale Coffelt | 16 | Grandson | — | Missouri |
| 11 | J. Carl (X) Lamb | 41 | Head | Operator | Missouri |
| 12 | Rhoda Lamb | 39 | Wife | — | Missouri |
| 13 | Mary E. Lamb THIS PERSON | 17 | Daughter | — | Missouri |
| 14 | Dale Lamb | 16 | Son | Laborer | Missouri |
| 15 | Paul Lamb | 14 | Son | Laborer | Missouri |
| 16 | Carline Lamb | 13 | Daughter | — | Missouri |
| 17 | Walter Lamb | 12 | Son | — | Missouri |
| 18 | Esther Ann Lamb | 10 | Daughter | — | Missouri |
| 19 | Charles Lamb | 9 | Son | — | Missouri |
| 20 | Melvin Lamb | 7 | Son | — | Missouri |
| 21 | Mattie Mae Lamb | 4 | Daughter | — | Missouri |
| 22 | Hada Fay Lamb | 2 | Daughter | — | Missouri |
| 23 | James E. Lamb | 0 | Son | — | Missouri |
| 24 | Amanda Lang | 74 | Head | — | Missouri |
| 25 | Charles (X) Lang | 46 | Son | Operator | Missouri |
| 26 | Frederickia Sundermeyer | 81 | Head | — | Missouri |
| 27 | Raymond (X) Schwengert | 28 | Grandson | Operator | Missouri |
| 28 | John Hanks | 48 | Nephew | — | Missouri |
| 29 | George H. (X) Bryan | 59 | Head | Laborer Road | Missouri |
| 30 | Anna Bryan | 46 | Wife | — | Missouri |
| 31 | Riley Bryan | 20 | Son | Laborer | Missouri |
| 32 | Dortha Bryan | 18 | Daughter | — | Missouri |
| 33 | Opal Bryan | 16 | Daughter | — | Missouri |
| 34 | Virginia Bryan | 12 | Daughter | — | Missouri |
| 35 | Olden Bryan | 10 | Son | — | Missouri |
| 36 | John Bryan | 8 | Son | — | Missouri |
| 37 | Dymanthia Bryan | 6 | Daughter | — | Missouri |
| 38 | Elgar (X) Stock | 40 | Head | Proprietor | Missouri |
| 39 | Jessie Stock | 44 | Wife | — | Missouri |
| 40 | Henry (X) Stock | 81 | Head | Retired | Missouri |
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)