JL
John Lamb — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washington-County, Tennessee
Our Model Tree links this John Lamb across the 1920, 1930 and 1940 US Censuses in Washington-County, Tennessee (XGBoost, ~Confirmed) — first a head (b.~1876), then head of a 4-person household.
Age 64
b. ~1876
Male
Head
Born: North Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Tennessee |
| Surname | Lamb |
| Given Name | John P |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | North Carolina |
| 1935 Residence (City) | Johnson City |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Occupation | Dentist |
| Industry | Office |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | C-5 |
| 1935 Residence | Same house |
| Birth State | North Carolina |
| Birth Country | United States |
| Birthplace (normalized) | north carolina |
| Occupation | Dentist |
| Township / Ward | Johnson City |
| Est. Birth Year | ~1876 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Milton Newman | Other | — | 19 | ~1921 |
| Elsie Lamb | Spouse | — | 53 | ~1887 |
| John Lamb | Head | — | 64 | ~1876 |
| Thad Lamb | Son | — | 14 | ~1926 |
Census Appearances
1920
Washington, Tennessee
Head, age 43
Washington, Tennessee · implied b. ~1877 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lamb |
| Given Name | John P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | North Carolina |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | North Carolina |
| Occupation | Dentist |
| Industry | Office |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | North Carolina |
| Birth Country | United States |
| Birthplace (normalized) | north carolina |
1930
Washington, Tennessee
Head, age 53
Washington, Tennessee · implied b. ~1877 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lamb |
| Given Name | John P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | North Carolina |
| Age at First Marriage | 23 |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | North Carolina |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | Ten |
| Veteran | No |
| Birth State | North Carolina |
| Birth Country | United States |
| Birthplace (normalized) | north carolina |
1940
Washington-County, Tennessee
Head, age 64
Washington-County, Tennessee · implied b. ~1876 — 4 household members
| Surname | Lamb |
| Given Name | John P |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | North Carolina |
| 1935 Residence (City) | Johnson City |
| 1935 Residence (County) | Washington |
| Occupation | Dentist |
| Industry | Office |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | C-5 |
| 1935 Residence | Same house |
| Birth State | North Carolina |
| Birth Country | United States |
| Birthplace (normalized) | north carolina |
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 John Lamb across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Lamb
Head · 1940 · age 64 · b. ~1876 · Tennessee
★ 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 — Washington-County, Tennessee
Open full size
1940 US Federal Census — Washington-County, Tennessee
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03944-00720)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Nancy C Barnes | 32 | Wife | — | West Virginia |
| 42 | Emily C Barnes | 15 | Daughter | — | Tennessee |
| 43 | George Jr Barnes | 13 | Son | — | Tennessee |
| 44 | Dora Bell Gray | 63 | Head | — | Tennessee |
| 45 | Don Gray | 38 | Son | Lawyer | Tennessee |
| 46 | Martha Garrett | 18 | Lodger | — | Virginia |
| 47 | Ethel Brinnon | 18 | Lodger | Stenographer | Tennessee |
| 48 | Space Left For Lodger Who Has Gone | None | — | — | — |
| 49 | Hugh W Edmonds | 60 | Head | Sec Treas | Virginia |
| 50 | Addie Lee Edmonds | 49 | Wife | — | Tennessee |
| 51 | Frank K Edmonds | 22 | Son | Salesman | Tennessee |
| 52 | Stephen W Edmonds | 19 | Son | — | Tennessee |
| 53 | John P Lamb THIS PERSON | 64 | Head | Dentist | North Carolina |
| 54 | Elsie Lamb | 53 | Wife | — | Tennessee |
| 55 | Thad Cox Lamb | 14 | Son | — | Tennessee |
| 56 | Milton Newman | 19 | Servant | Butler | North Carolina |
| 57 | John B Whisman | 65 | Head | Stock Clerk | Virginia |
| 58 | Bessie Whisman | 63 | Wife | Saleslady | Virginia |
| 59 | Robert Whisman | 36 | Nephew | Warehouseman | Virginia |
| 60 | Bessie Mae Whisman | 22 | Wife in law | Housekeeper | Tennessee |
| 61 | James S Whisman | 25 | Head | Research Department | Tennessee |
| 62 | Mildred Whisman | 23 | Wife | — | Tennessee |
| 63 | Tommie Whisman | 2 | Son | — | Tennessee |
| 64 | William S Whisman | 68 | Head | — | Virginia |
| 65 | Ida N Whisman | 63 | Wife | — | Virginia |
| 66 | Susie F Grubbs | 37 | Maid | Housekeeper | Tennessee |
| 67 | Sherwood S Jones | 30 | Son in law | Proprietor | West Virginia |
| 68 | Elizabeth Jones | 28 | Daughter | Saleslady | Tennessee |
| 69 | Paul T Hill | 46 | Head | Proprietor | Tennessee |
| 70 | Mary Q Hill | 44 | Wife | — | Tennessee |
| 71 | Here Ends 100 Block | None | — | — | — |
| 72 | Charles D Dance | 56 | Head | Auditor | Virginia |
| 73 | Susie Q Dance | 60 | Wife | Quilter | Tennessee |
| 74 | Max Crawford Nave | 43 | Head | Stationary Engineer | Tennessee |
| 75 | Lonna Weston Nave | 35 | Wife | — | Tennessee |
| 76 | Lyda Elizabeth Nave | 5 | Daughter | — | Tennessee |
| 77 | Lucy May Moore | 23 | Maid | Housekeeper | Tennessee |
| 78 | Payton E Wheland | 39 | Head | School Teacher | North Carolina |
| 79 | Pauline Wheland | 35 | Wife | — | Texas |
| 80 | Francis E Wheland | 3 | Daughter | — | Texas |
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)