JP
John Porter — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sangamon-County, Illinois
Our Model Tree links this John Porter across the 1920, 1930 and 1940 US Censuses in Sangamon-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1884), then head of a 4-person household.
Age 56
b. ~1884
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Sangamon-County, Illinois |
| Surname | Porter |
| Given Name | John S |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Springfield City |
| 1935 Residence (County) | Sangamon |
| Additional Details | |
| Occupation | Sta. Engineer |
| Industry | Spf High School |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 2100 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Sta. Engineer |
| Township / Ward | Springfield City |
| Est. Birth Year | ~1884 |
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 |
|---|---|---|---|---|
| Mary Porter | Daughter | — | 27 | ~1913 |
| John Porter | Head | — | 56 | ~1884 |
| John Porter | Son | — | 20 | ~1920 |
| Margaret Porter | Spouse | — | 54 | ~1886 |
Census Appearances
1920
Sangamon, Illinois
Head, age 37
Sangamon, Illinois · implied b. ~1883 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Porter |
| Given Name | John S |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Engineer |
| Industry | Water Works |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Sangamon, Illinois
Head, age 47
Sangamon, Illinois · implied b. ~1883 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Porter |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 23 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Engineer |
| Industry | Hydroelectric |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Sangamon-County, Illinois
Head, age 56
Sangamon-County, Illinois · implied b. ~1884 — 4 household members
| Surname | Porter |
| Given Name | John S |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Springfield City |
| 1935 Residence (County) | Sangamon |
| Occupation | Sta. Engineer |
| Industry | Spf High School |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 2100 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Porter across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Porter
Head · 1940 · age 56 · b. ~1884 · Illinois
★ 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 — 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-t0627-00884-00215)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Warren Vasconcellos | 39 | Son | Blacksmith | Illinois |
| 2 | Edward Hugsy | 43 | Head | Order Clerk | Illinois |
| 3 | Ruth Hugsy | 42 | Wife | — | Illinois |
| 4 | Ursula Hugsy | 19 | Daughter | Gen Office Work | Illinois |
| 5 | Calvin Hugsy | 18 | Son | Usher | Illinois |
| 6 | John S Porter THIS PERSON | 56 | Head | Sta. Engineer | Ohio |
| 7 | Margaret R Porter | 54 | Wife | — | Ohio |
| 8 | Mary Jane Porter | 27 | Daughter | — | Illinois |
| 9 | John W Porter | 20 | Son | — | Illinois |
| 10 | Virgil L Knell | 53 | Head | Die Maker | Illinois |
| 11 | Flora B Knell | 55 | Wife | — | Illinois |
| 12 | Rudolph Peters | 52 | Head | Loco Fireman | Illinois |
| 13 | Lucy D Peters | 49 | Wife | — | Illinois |
| 14 | Chas Peters | 28 | Son | City Fireman | Illinois |
| 15 | Harvey Hale | 46 | Head | Grocer Man | Illinois |
| 16 | Estelle E Hale | 44 | Wife | — | Illinois |
| 17 | Wm A Muir | 43 | Head | Master Mech. | Illinois |
| 18 | Wilma D Muir | 46 | Wife | — | Illinois |
| 19 | Billy Muir | 20 | Son | — | Illinois |
| 20 | Betty Muir | 20 | Daughter | Steno | Illinois |
| 21 | Mae D Brown | 53 | Head | — | Illinois |
| 22 | Ogden Brown | 23 | Son | Draftsman | Illinois |
| 23 | Roy L Fox | 49 | Head | Grocer Man | Wisconsin |
| 24 | Ada D Fox | 45 | Wife | Clerk | Illinois |
| 25 | Roy Allen Fox | 15 | Son | Del Paper Car | Illinois |
| 26 | Leonard Fox | 14 | Son | — | Illinois |
| 27 | C. C. May | 48 | Head | Carpenter | Illinois |
| 28 | Minnie May | 47 | Wife | — | Illinois |
| 29 | Coy Stark | 48 | Head | Printer | Illinois |
| 30 | Beulah D Stark | 36 | Wife | — | Iowa |
| 31 | Coy Jr Stark | 15 | Son | — | Illinois |
| 32 | John Stark | 10 | Son | — | Illinois |
| 33 | Betty Stark | 8 | Daughter | — | Illinois |
| 34 | John L Crowder | 55 | Head | Printer | Illinois |
| 35 | Susie D Crowder | 54 | Wife | — | Missouri |
| 36 | Joe D Puckett | 39 | Head | Branch Mgr. | Kentucky |
| 37 | Ethel Puckett | 38 | Wife | — | Tenn |
| 38 | Eugene Dougherty | 37 | Head | Teacher | Tenn |
| 39 | Flora D Dougherty | 25 | Wife | — | Penn |
| 40 | Ed. Bronchin | 67 | Head | Clerk | Belgium |
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)