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John Mcdowell — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Vermilion, Illinois
Our Model Tree links this John Mcdowell across the 1920 and 1930 US Censuses in Vermilion, Illinois (XGBoost, ~Confirmed) — first a son (b.~1917), then head of a 9-person household.
Age 13
b. ~1917
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Vermilion, Illinois |
| Surname | McDowell |
| Given Name | John J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Sidell Township |
| 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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Sarah Mcdowell | Daughter | — | 6 | ~1924 |
| Caroline Mcdowell | Daughter | — | 17 | ~1913 |
| Fred Mcdowell | Son | — | 22 | ~1908 |
| Fred Mcdowell | Head | — | 53 | ~1877 |
| John Mcdowell | Son | — | 13 | ~1917 |
| Porter Mcdowell | Son | — | 9 | ~1921 |
| Grace Mcdowell | Other | — | 47 | ~1883 |
| Catherine Mcdowell | Daughter | — | 20 | ~1910 |
| Donald Mcdowell | Son | — | 15 | ~1915 |
Census Appearances
1920
Vermilion, Illinois
Son, age 3
Vermilion, Illinois · implied b. ~1917 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDowell |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Vermilion, Illinois
Son, age 13
Vermilion, Illinois · implied b. ~1917 — 9 household members
| Surname | McDowell |
| Given Name | John J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Mcdowell across 2 US Census years (1920 and 1930) in Vermilion, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
John Mcdowell
Son · 1930 · age 13 · b. ~1917 · Illinois
★ You are viewing this record
Sibling
Donald Mcdowell
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fred Mcdowell
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Mcdowell
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sarah Mcdowell
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Porter Mcdowell
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Caroline Mcdowell
Sibling · 1930 · age 17
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
1930 US Federal Census — Vermilion, Illinois
Open full size
1930 US Federal Census — Vermilion, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel565:0206)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mary K | 3 | Daughter | — | Illinois |
| 52 | Carrie E Mcdowell | 54 | Head-H | — | Illinois |
| 53 | Fred M Mcdowell | 53 | Head | Farmer | Illinois |
| 54 | Grace Mcdowell | 47 | Wife-H | — | Illinois |
| 55 | Fred J Mcdowell | 22 | Son | — | Illinois |
| 56 | Catherine E Mcdowell | 20 | Daughter | — | Wyoming |
| 57 | Caroline Mcdowell | 17 | Daughter | — | Illinois |
| 58 | Donald F Mcdowell | 15 | Son | — | Illinois |
| 59 | John J Mcdowell THIS PERSON | 13 | Son | — | Illinois |
| 60 | Porter J Mcdowell | 9 | Son | — | Illinois |
| 61 | Sarah J Mcdowell | 6 | Daughter | — | Illinois |
| 62 | Herbert N Spring | 55 | Head | Farmer | Ohio |
| 63 | Jane B Spring | 48 | Wife-H | — | Illinois |
| 64 | Herbert B Spring | 22 | Son | Laborer | Illinois |
| 65 | Mary E Spring | 17 | Daughter | — | Illinois |
| 66 | Walter J Spring | 16 | Son | — | Illinois |
| 67 | Sarah Talbott | None | Head | Farmer | Illinois |
| 68 | Douglas A Miller | 68 | Head | Farmer | Illinois |
| 69 | Metta Miller | 64 | Wife-H | — | Illinois |
| 70 | Milton Guthrie | 71 | O | Farmer | Illinois |
| 71 | Sarah E Guthrie | 64 | Wife-H | — | Kentucky |
| 72 | Edward Biggins | 50 | — | Laborer | Illinois |
| 73 | Maud Biggins | 45 | Wife-H | — | Illinois |
| 74 | Lewis Biggins | 14 | Son | — | Illinois |
| 75 | Orville Wright | 40 | O | Laborer | Illinois |
| 76 | Gladys C Wright | 35 | Wife-H | — | Illinois |
| 77 | Chester C Baber | 20 | R | Laborer | Illinois |
| 78 | Clara M Baber | 19 | Wife-H | — | Illinois |
| 79 | Marcella R Baber | 2 | Daughter | — | Illinois |
| 80 | Charles W Baber | 49 | O | Laborer | Illinois |
| 81 | Minnie M Baber | 44 | Wife-H | — | Illinois |
| 82 | Lewis M Baber | 13 | Son | — | Illinois |
| 83 | Baber | 11 | Son | — | Illinois |
| 84 | William St Clair | 72 | O | Laborer | Illinois |
| 85 | Ida M St Clair | 65 | Wife-H | — | Illinois |
| 86 | Matilda Mcdowell | 83 | Mother-in-law | — | Illinois |
| 87 | Charles Marsh | 51 | Boarder | Laborer | Illinois |
| 88 | Clella Provant | 43 | Head-H | Servant | Illinois |
| 89 | Mayme M Provant | 15 | Daughter | — | Illinois |
| 90 | John G Provant | 10 | Son | — | Illinois |
| 91 | Mary L Provant | 7 | Daughter | — | Illinois |
| 92 | Robert D Provant | 3 | Son | — | Illinois |
| 93 | Mary D Mahoney | 71 | Head-H | Farmer | Illinois |
| 94 | Lola L Mahoney | 40 | Daughter | — | Illinois |
| 95 | Emma L Mahoney | 5 | Granddaughter | — | Illinois |
| 96 | Wayne H St Clair | 26 | R | Farmer | Illinois |
| 97 | Velma St Clair | 26 | Wife-H | — | Kentucky |
| 98 | Eloise St Clair | 2 | Daughter | — | Illinois |
| 99 | Ida Hart | 51 | Mother-in-law | — | Kentucky |
| 100 | Marion F Dickerson | 67 | O | Farmer | Illinois |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)