JC
John Chambers — 1940 US Census Record
Model Tree available1940 United States Federal Census · Sangamon-County, Illinois
Our Model Tree links this John Chambers across the 1900, 1910, 1920, 1930 and 1940 US Censuses in Sangamon-County, Illinois (XGBoost, ~Confirmed), with identified parents William & Sophia — first a son (b.~1885), then head of a 5-person household.
Age 55
b. ~1885
Male
Son
Born: Scotland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sangamon-County, Illinois |
| Surname | Chambers |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Single |
| Birthplace | Scotland |
| 1935 Residence (City) | Springfield City |
| 1935 Residence (County) | Sangamon |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Music Teacher |
| Industry | Public High School |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 1575 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Teacher |
| Township / Ward | Springfield City |
| Est. Birth Year | ~1885 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Zylphia Chambers | Daughter | — | 40 | ~1900 |
| Margaret Chambers | Daughter | — | 52 | ~1888 |
| Sophia Chambers | Head | — | 75 | ~1865 |
| Albert Chambers | Son | — | 17 | ~1923 |
| John Chambers | Son | — | 55 | ~1885 |
Census Appearances
1900
Sangamon, Illinois
Son, age 15
Sangamon, Illinois · implied b. ~1885 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chambers |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Scotland |
| Birth Month | Aug |
| Birth Year | 1885 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Write | Coal Miner |
| Speaks English | Yes |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1910
Logan, Illinois
Son, age 25
Logan, Illinois · implied b. ~1885 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chambers |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Scotland |
| Year of Immigration | 1888 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Miner |
| Industry | Coal |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1920
Logan, Illinois
Son, age 35
Logan, Illinois · implied b. ~1885 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chambers |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Scotland |
| Year of Immigration | 1884 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Salesman |
| Industry | Grocery Store |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Year of Naturalization | 1890 |
| Birthplace (normalized) | scotland |
1930
Sangamon, Illinois
Son, age 45
Sangamon, Illinois · implied b. ~1885 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chambers |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Single |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1888 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Music Teacher |
| Industry | High School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Veteran | No |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Sangamon-County, Illinois
Son, age 55
Sangamon-County, Illinois · implied b. ~1885 — 5 household members
| Surname | Chambers |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Single |
| Birthplace | Scotland |
| 1935 Residence (City) | Springfield City |
| 1935 Residence (County) | Sangamon |
| Naturalization Status | Naturalized |
| Occupation | Music Teacher |
| Industry | Public High School |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 1575 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Chambers across 5 US Census years (1900, 1910, 1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father William Chambers (~0.92 confidence) and mother Sophia Chambers (~0.92 confidence) and father John Chambers (~0.92 confidence) and mother Sophia Chambers (~0.92 confidence) and mother Sophia Chambers (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Chambers
b. ~1861
Source father
● Household
· direct · ~0.92
Mother
Sophia Chambers
b. ~1862
Source mother
● Household
· direct · ~0.92
Father
John Chambers
b. ~1863
Source father
● Household
· direct · ~0.92
Mother
Sophia Chambers
b. ~1865
Source mother
● Household
· direct · ~0.92
Mother
Sophia Chambers
b. ~1865
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Chambers
Son · 1940 · age 55 · b. ~1885 · Illinois
★ You are viewing this record
Sibling
Zylphia Chambers
Sibling · 1940 · age 40
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Chambers
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Chambers
Sibling · 1940 · age 52
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 — Sangamon-County, Illinois
Open full size
1940 US Federal Census — Sangamon-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00884-00470)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James Cooke | 23 | Lodger | Proprietor | Illinois |
| 42 | Marlene Louise Cooke | 27 | Lodger | Asst. Cashier | England |
| 43 | Oliver R. Cooke | 41 | Lodger | Salesman | Kansas |
| 44 | Rochelieu, Madeline | 22 | Head | Registered Nurse | Illinois |
| 45 | Sophia Chambers | 75 | Head | — | Illinois |
| 46 | John Chambers THIS PERSON | 55 | Son | Music Teacher | Scotland |
| 47 | Margaret Chambers | 52 | Daughter | Music Teacher | Scotland |
| 48 | Zylphia Chambers | 40 | Daughter | Inspector | Illinois |
| 49 | Albert Chambers | 17 | Son | — | Illinois |
| 50 | Adela Padrick | 39 | Head | Proprietor | Italy |
| 51 | Angela Padrick | 24 | Son | Waiter | Illinois |
| 52 | Paul Mcculley | 29 | Son-in-law | Proprietor | Illinois |
| 53 | Leona Mcculley | 24 | Daughter | — | Illinois |
| 54 | Karen Mcculley | 1 | Granddaughter | — | Illinois |
| 55 | John Lyons | 24 | Lodger | Waiter | Illinois |
| 56 | Blank | None | — | — | — |
| 57 | Annie Campbell | 57 | Head | Maid | Scotland |
| 58 | Elizabeth Campbell | 30 | Daughter | Sales Lady | Scotland |
| 59 | Fanny Elizabeth Campbell | 27 | Daughter | Sales Lady | Illinois |
| 60 | Edna Schadel | 62 | Head | Seamstress | Germany |
| 61 | Nell Emma Schadel | 36 | Daughter | Seamstress | Illinois |
| 62 | Loretta Schadel | 9 | Daughter | — | Illinois |
| 63 | Mabel Cowan | 32 | Head | Stenographer | Illinois |
| 64 | Ruth Langley | 32 | Head | General Office Work | Illinois |
| 65 | Christian Blackler | 42 | Head | Manager | Pennsylvania |
| 66 | Ella Blackler | 40 | Wife | — | Pennsylvania |
| 67 | Nancy Blackler | 16 | Daughter | — | Illinois |
| 68 | Christian Blackler | 14 | Son | — | Illinois |
| 69 | Dorothy Ann Blackler | 11 | Daughter | — | Illinois |
| 70 | Patricia Blackler | 9 | Daughter | — | Illinois |
| 71 | Mary Jo Blackler | 5 | Daughter | — | Illinois |
| 72 | Richard W. Blackler | 7 | Son | — | Illinois |
| 73 | Paul John Blackler | 3 | Son | — | Illinois |
| 74 | James Blackler | 0 | Son | — | Illinois |
| 75 | Willa Richards | 51 | Head | Laundress | Illinois |
| 76 | Gilbert Mowery | 23 | Son-in-law | Laborer | Illinois |
| 77 | Mary Jane Mowery | 16 | Daughter | — | Illinois |
| 78 | John T. Anderson | 33 | Head | Laborer | Illinois |
| 79 | Berd Anderson | 43 | Wife | — | Illinois |
| 80 | Florence Mcfarland | 23 | Lodger | Private Nurse | Illinois |
Pedigree Summary
John + 3 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)