JC
James Chambers — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Porter-County, Indiana
Our Model Tree links this James Chambers across the 1930 and 1940 US Censuses in Porter-County, Indiana (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 8-person household.
Age 12
b. ~1928
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Porter-County, Indiana |
| Surname | Chambers |
| Given Name | James L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Valparaiso |
| 1935 Residence (County) | Porter |
| Additional Details | |
| Highest Grade | Hs 3 |
| 1935 Residence | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Portage |
| Est. Birth Year | ~1928 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Ruth Chambers | Daughter | — | 21 | ~1919 |
| James Chambers | Son | — | 12 | ~1928 |
| Douglas Chambers | Son | — | 9 | ~1931 |
| Lydia Chambers | Spouse | — | 41 | ~1899 |
| Ollie Chambers | Daughter | — | 7 | ~1933 |
| Darwin Chambers | Son | — | 5 | ~1935 |
| Robert Chambers | Son | — | 16 | ~1924 |
| Edward Chambers | Son | — | 18 | ~1922 |
Census Appearances
1930
Porter, Indiana
Son, age 2
Porter, Indiana · implied b. ~1928 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chambers |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Can Read/Write | No |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Porter-County, Indiana
Son, age 12
Porter-County, Indiana · implied b. ~1928 — 8 household members
| Surname | Chambers |
| Given Name | James L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Valparaiso |
| 1935 Residence (County) | Porter |
| Highest Grade | Hs 3 |
| 1935 Residence | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Chambers across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Chambers
Son · 1940 · age 12 · b. ~1928 · Indiana
★ You are viewing this record
Sibling
Douglas Chambers
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Chambers
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Chambers
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Darwin Chambers
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ollie Chambers
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Chambers
Sibling · 1940 · age 21
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 — Porter-County, Indiana
Open full size
1940 US Federal Census — Porter-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01086-00555)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lydia F. Chambers | 41 | Wife | — | Michigan |
| 42 | Ruth E. Chambers | 21 | Daughter | Housekeeper | Michigan |
| 43 | Edward W. Chambers | 18 | Son | Hired Hand | Indiana |
| 44 | Robert D. Chambers | 16 | Son | — | Indiana |
| 45 | James L. Chambers THIS PERSON | 12 | Son | — | Indiana |
| 46 | Douglas F. Chambers | 9 | Son | — | Indiana |
| 47 | Ollie B. Chambers | 7 | Daughter | — | Indiana |
| 48 | Darwin M. Chambers | 5 | Son | — | Indiana |
| 49 | Earnest W. Wheeler | 65 | Head | — | Indiana |
| 50 | Bessie M. Wheeler | 55 | Wife | — | Illinois |
| 51 | Earnest Jr. Wheeler | 15 | Son | — | Indiana |
| 52 | Edwin S. Jentzen | 60 | Head | Farmer | Indiana |
| 53 | Dorothy Jentzen | 58 | Wife | — | Indiana |
| 54 | Ervin Jentzen | 27 | Son | Laborer | Indiana |
| 55 | Raymond Jentzen | 32 | Head | Janitor | Indiana |
| 56 | Gladys Jentzen | 32 | Wife | — | Illinois |
| 57 | Chester Robbins | 58 | Head | Farmer | Indiana |
| 58 | Winifred Robbins | 49 | Wife | — | Michigan |
| 59 | Mark Hackman | 28 | Head | Salesman | Nebraska |
| 60 | Lola Hackman | 24 | Wife | — | Nebraska |
| 61 | Robert Hackman | 6 | Son | — | Nebraska |
| 62 | Mark Hackman | 2 | Son | — | Indiana |
| 63 | Paul E. Perkins | 31 | Head | Hired Hand | Indiana |
| 64 | Talitha M. Perkins | 25 | Wife | — | Indiana |
| 65 | Francis D. Perkins | 5 | Son | — | Indiana |
| 66 | Teeter T. Perkins | 3 | Son | — | Illinois |
| 67 | William Ludwig | 58 | Head | Operator | Germany |
| 68 | Anne Ludwig | 46 | Wife | — | Germany |
| 69 | Otto Mittner | 24 | Step Son | Laborer | Germany |
| 70 | Harry L. Nall | 19 | Lodger | Laborer | Iowa |
| 71 | Louis N. Robbins | 29 | Head | Operating | Indiana |
| 72 | Marian Robbins | 26 | Wife | — | Indiana |
| 73 | Joseph P. Robbins | 3 | Son | — | Indiana |
| 74 | Janet M. Robbins | 1 | Daughter | — | Indiana |
| 75 | Joseph S. Robbins | 58 | Head | Farmer | Indiana |
| 76 | Gertrude Robbins | 52 | Wife | — | Indiana |
| 77 | Elizabeth Robbins | 30 | Daughter | Bookkeeper | Indiana |
| 78 | Mary A. Robbins | 86 | Mother | — | Ohio |
| 79 | William S. Parnell | 57 | Head | Craneman | Kentucky |
| 80 | Ollie M. Parnell | 57 | Wife | — | Kentucky |
Related Census Records
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)