JC
James Carr — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Delaware-County, Pennsylvania
Our Model Tree links this James Carr across the 1930 and 1940 US Censuses in Delaware-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 11-person household.
Age 17
b. ~1923
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Pennsylvania |
| Surname | Carr |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Chester |
| 1935 Residence (County) | Delaware |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Chester |
| 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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Margaret Carr | Daughter | — | 5 | ~1935 |
| Lavina Carr | Daughter | — | 19 | ~1921 |
| Amelia Carr | Daughter | — | 20 | ~1920 |
| Mary Carr | Daughter | — | 12 | ~1928 |
| Rose Carr | Daughter | — | 16 | ~1924 |
| James Carr | Head | — | 51 | ~1889 |
| Joseph Carr | Other | — | 43 | ~1897 |
| Joseph Carr | Son | — | 10 | ~1930 |
| William Carr | Son | — | 7 | ~1933 |
| James Carr | Son | — | 17 | ~1923 |
| Lavina Carr | Spouse | — | 43 | ~1897 |
Census Appearances
1930
Philadelphia, Pennsylvania
Son, age 7
Philadelphia, Pennsylvania · implied b. ~1923 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carr |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Delaware-County, Pennsylvania
Son, age 17
Delaware-County, Pennsylvania · implied b. ~1923 — 11 household members
| Surname | Carr |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Chester |
| 1935 Residence (County) | Delaware |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Carr across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Carr
Son · 1940 · age 17 · b. ~1923 · Pennsylvania
★ You are viewing this record
Sibling
Lavina Carr
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Carr
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Amelia Carr
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Carr
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Carr
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Carr
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Carr
Sibling · 1940 · age 7
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 — Delaware-County, Pennsylvania
Open full size
1940 US Federal Census — Delaware-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03488-00062)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dorothy Johnson | 19 | Daughter | Spinner | Pennsylvania |
| 42 | Nelson Johnson | 14 | Son | — | Pennsylvania |
| 43 | Louis Owens | 47 | Head | Machinist Helper | Virginia |
| 44 | Dorothy Owens | 36 | Wife | — | Pennsylvania |
| 45 | James Carr | 51 | Head | Driller | Pennsylvania |
| 46 | Lavina Carr | 43 | Wife | — | Pennsylvania |
| 47 | Amelia Carr | 20 | Daughter | Twister | Pennsylvania |
| 48 | Lavina Carr | 19 | Daughter | Twister | Pennsylvania |
| 49 | James Carr THIS PERSON | 17 | Son | — | Pennsylvania |
| 50 | Rose Carr | 16 | Daughter | House Work | Pennsylvania |
| 51 | Mary Carr | 12 | Daughter | — | Pennsylvania |
| 52 | Joseph Carr | 10 | Son | — | Pennsylvania |
| 53 | William Carr | 7 | Son | — | Pennsylvania |
| 54 | Margaret Carr | 5 | Daughter | — | Pennsylvania |
| 55 | Joseph Carr | 43 | Brother | Steward | Pennsylvania |
| 56 | Arthur Straughn | 55 | Head | Laborer | Maryland |
| 57 | Edna Straughn | 41 | Wife | — | Maryland |
| 58 | Russell Straughn | 20 | Son | Handyman | Pennsylvania |
| 59 | Virginia Straughn | 13 | Daughter | — | Pennsylvania |
| 60 | Evelyn Straughn | 8 | Daughter | — | Pennsylvania |
| 61 | Ralph Squibb | 20 | Lodger | Electrician | Pennsylvania |
| 62 | Mary Hailey | 58 | Head | — | Pennsylvania |
| 63 | George Hailey | 25 | Son | Machinist Helper | Pennsylvania |
| 64 | Herbert Hailey | 22 | Son | Ship Fitter | Pennsylvania |
| 65 | Robert Hailey | 15 | Son | — | Pennsylvania |
| 66 | Sarah Harrison | 65 | Head | — | England |
| 67 | Abner Grantham | 40 | Son in law | Milkman | Pennsylvania |
| 68 | Elizabeth Grantham | 41 | Daughter | — | Pennsylvania |
| 69 | Dorothy Grantham | 21 | Daughter | Machine Operator | Pennsylvania |
| 70 | Ruth Grantham | 6 | Daughter | Paper Hanger | Pennsylvania |
| 71 | Sanford Smalley | 34 | Head | — | Pennsylvania |
| 72 | Dorothy Smalley | 26 | Wife | — | Pennsylvania |
| 73 | Florence Smalley | 7 | Daughter | — | Pennsylvania |
| 74 | Joy Smalley | 4 | Daughter | — | Pennsylvania |
| 75 | Philomena Murray | 58 | Head | Laborer | Pennsylvania |
| 76 | Frances Murray | 30 | Wife | — | Ohio |
| 77 | Theresa Murray | 16 | Daughter | New Worker | Pennsylvania |
| 78 | Agnes Murray | 14 | Daughter | — | Pennsylvania |
| 79 | Michael Monro | 53 | Lodger | Machinist | Russia |
| 80 | Linda Fink | 61 | Head | — | Pennsylvania |
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)