JL
James Lamb — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Warren-County, Ohio
Our Model Tree links this James Lamb across the 1930 and 1940 US Censuses in Warren-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 10-person household.
Age 11
b. ~1929
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Warren-County, Ohio |
| Surname | Lamb |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Franklin |
| 1935 Residence (County) | Warren |
| Additional Details | |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Franklin |
| Est. Birth Year | ~1929 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| James Monroe | Head | — | 48 | ~1892 |
| Donnie Lamb | Son | — | 3 | ~1937 |
| Dannie Lamb | Son | — | 1 | ~1939 |
| Callie Lamb | Spouse | — | 39 | ~1901 |
| Jasper Lamb | Son | — | 20 | ~1920 |
| Le Lamb | Son | — | 18 | ~1922 |
| Monroe Lamb | Son | — | 14 | ~1926 |
| Shirley Lamb | Daughter | — | 1 | ~1939 |
| Robert Lamb | Son | — | 16 | ~1924 |
| James Lamb | Son | — | 11 | ~1929 |
Census Appearances
1930
Montgomery, Ohio
Son, age 1
Montgomery, Ohio · implied b. ~1929 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lamb |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Warren-County, Ohio
Son, age 11
Warren-County, Ohio · implied b. ~1929 — 10 household members
| Surname | Lamb |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Franklin |
| 1935 Residence (County) | Warren |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 James Lamb across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Lamb
Son · 1940 · age 11 · b. ~1929 · Ohio
★ You are viewing this record
Sibling
Le Lamb
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donnie Lamb
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dannie Lamb
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Monroe Lamb
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Lamb
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Lamb
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jasper Lamb
Sibling · 1940 · age 20
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 — Warren-County, Ohio
Open full size
1940 US Federal Census — Warren-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03164-00223)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Gladys Wolfram | 30 | daughter | Mangle Work | Ohio |
| 42 | Lloyd Wolfram | 28 | son | Carpenter | Ohio |
| 43 | James Monroe | 48 | Head | Laborer | Kentucky |
| 44 | Callie Lamb | 39 | Wife | — | Kentucky |
| 45 | Jasper Lamb | 20 | son | — | Ohio |
| 46 | Le Roy Lamb | 18 | son | — | Ohio |
| 47 | Robert Lamb | 16 | son | — | Ohio |
| 48 | Monroe Jr Lamb | 14 | son | — | Ohio |
| 49 | James Lamb THIS PERSON | 11 | son | — | Ohio |
| 50 | Donnie Jean Lamb | 3 | son | — | Ohio |
| 51 | Dannie Lamb | 1 | son | — | Ohio |
| 52 | Shirley Ann Lamb | 1 | daughter | — | Ohio |
| 53 | Homer Weaver | 35 | Head | Labor | Kentucky |
| 54 | Dencie Weaver | 30 | Wife | — | Kentucky |
| 55 | Ronald Weaver | 9 | son | — | Ohio |
| 56 | Bobby Roy Weaver | 7 | son | — | Kentucky |
| 57 | Lawrence Weaver | 5 | son | — | Kentucky |
| 58 | Gertrude Weaver | 3 | daughter | — | Kentucky |
| 59 | Melvin Weaver | 2 | son | — | Kentucky |
| 60 | Nathan Dalton | 42 | Head | Labor | Tennessee |
| 61 | Vada Dalton | 36 | Wife | — | Tennessee |
| 62 | Frank Dalton | 18 | son | Labor | Tennessee |
| 63 | W. J. Dalton | 15 | son | — | Tennessee |
| 64 | Gladys Dalton | 13 | daughter | — | Tennessee |
| 65 | Fred Dalton | 11 | son | — | Ohio |
| 66 | Robert S Dalton | 9 | son | — | Ohio |
| 67 | Ray Dalton | 4 | son | — | Ohio |
| 68 | Betty Jane Dalton | 3 | daughter | — | Ohio |
| 69 | Edna Dalton | 1 | daughter | — | Ohio |
| 70 | Raymond Roberts | 64 | Head | — | Kentucky |
| 71 | Sarepta Roberts | 54 | Wife | — | Ohio |
| 72 | Thomas E Roberts | 17 | son | Labor | Ohio |
| 73 | Claude Harvel | 21 | Head | 4Th Machine Hand | Tennessee |
| 74 | Beatrice Harvel | 18 | Wife | — | Tennessee |
| 75 | Geneva Richardson | 24 | Head | 3Rd Machine Hand | Missouri |
| 76 | Geneva V Richardson | 20 | Wife | — | Tennessee |
| 77 | Peggy Ann Richardson | 2 | daughter | — | Ohio |
| 78 | Lee Tinch | 57 | Head | Labor | Tennessee |
| 79 | Mamie Tinch | 55 | Wife | — | Kentucky |
| 80 | Joe Todor | 54 | Roomer | Labor | Rumania |
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)