JC
John Carr — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Morgan-County, Alabama
Our Model Tree links this John Carr across the 1930 and 1940 US Censuses in Morgan-County, Alabama (XGBoost, ~Confirmed) — first a son (b.~1917), then head of a 10-person household.
Age 23
b. ~1917
Male
Son
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Morgan-County, Alabama |
| Surname | Carr |
| Given Name | John T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Precinct 24 |
| 1935 Residence (County) | Morgan |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 260 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | Laborer |
| Township / Ward | Precinct 24 |
| Est. Birth Year | ~1917 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Mary Carr | Daughter | — | 30 | ~1910 |
| Eva Carr | Daughter | — | 20 | ~1920 |
| Oma Watkins | Head | — | 32 | ~1908 |
| James Watkins | Son | — | 7 | ~1933 |
| J Watkins | Son | — | 3 | ~1937 |
| J Watkins | Son | — | 1 | ~1939 |
| Donal Watkins | Son | — | 5 | ~1935 |
| John Carr | Son | — | 23 | ~1917 |
| James Carr | Son | — | 69 | ~1871 |
| Emma Watkins | Spouse | — | 28 | ~1912 |
Census Appearances
1930
Morgan, Alabama
Son, age 12
Morgan, Alabama · implied b. ~1918 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carr |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | South Carolina |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Morgan-County, Alabama
Son, age 23
Morgan-County, Alabama · implied b. ~1917 — 10 household members
| Surname | Carr |
| Given Name | John T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Precinct 24 |
| 1935 Residence (County) | Morgan |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 260 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
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 Carr across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Carr
Son · 1940 · age 23 · b. ~1917 · Alabama
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Sibling
James Carr
Sibling · 1940 · age 69
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
J Watkins
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eva Carr
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Watkins
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Carr
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
J Watkins
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donal Watkins
Sibling · 1940 · age 5
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 — Morgan-County, Alabama
Open full size
1940 US Federal Census — Morgan-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00072-00447)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ivan Hutson | 58 | Head | Farmer | Kentucky |
| 42 | Nancy Hutson | 60 | Wife | — | Kentucky |
| 43 | Buddy Robinson | 26 | Head | Laborer | Alabama |
| 44 | Marie Robinson | 25 | Wife | — | Tennessee |
| 45 | Franklin Robinson | 0 | Son | — | Alabama |
| 46 | Virginia L. Russell | 42 | Head | — | Alabama |
| 47 | Malcom L. Russell | 20 | Son | Laborer | Alabama |
| 48 | Christine A. Russell | 15 | Daughter | — | Alabama |
| 49 | Jerry M. Russell | 13 | Son | — | Alabama |
| 50 | Virginia L. Russell | 10 | Daughter | — | Alabama |
| 51 | Bettie J. Russell | 5 | Daughter | — | Alabama |
| 52 | J. Tom Tapscott | 30 | Head | Farmer | Alabama |
| 53 | Clara H. Tapscott | 29 | Wife | — | Alabama |
| 54 | Louis D. Tapscott | 5 | Son | — | Alabama |
| 55 | Oma J. Watkins | 32 | Head | Laborer | Alabama |
| 56 | Emma L. Watkins | 28 | Wife | Laborer | Alabama |
| 57 | James M. Watkins | 7 | Son | — | Alabama |
| 58 | Donal R. Watkins | 5 | Son | — | Alabama |
| 59 | J. D. Watkins | 3 | Son | — | Alabama |
| 60 | J. Reese R. Watkins | 1 | Son | — | Alabama |
| 61 | James W. B. Carr | 69 | Son | Farmer | Tennessee |
| 62 | Mary Carr | 30 | Daughter | — | Tennessee |
| 63 | John T. Carr THIS PERSON | 23 | Son | Laborer | Alabama |
| 64 | Eva Carr | 20 | Daughter | — | Alabama |
| 65 | James M. Sams | 60 | Head | Farmer | Alabama |
| 66 | Mary B. Sams | 58 | Wife | — | Alabama |
| 67 | Murrah Sams | 30 | Head | Farmer | Alabama |
| 68 | Lala A. Sams | 26 | Wife | — | Alabama |
| 69 | Murrah D. Sams | 2 | Son | — | Alabama |
| 70 | Frances Marrow | 68 | Head | — | Alabama |
| 71 | Francis Marrow | 66 | Head | — | Alabama |
| 72 | Ben Marrow | 30 | Son | Laborer | Alabama |
| 73 | Maggie Marrow | 30 | Daughter | — | Alabama |
| 74 | Maggie Marrow | 16 | Daughter | — | Alabama |
| 75 | Ullersie Marrow | 15 | Grandson | Laborer | Alabama |
| 76 | Leroy Marrow | 12 | Grandson | — | Alabama |
| 77 | Samuel Marrow | 10 | Grandson | — | Alabama |
| 78 | Walter Edison | 20 | Son | Laborer | Alabama |
| 79 | Ben Head Waddell | 68 | Head | Farmer | Alabama |
| 80 | Martha E. Waddell | 61 | Wife | — | Alabama |
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)