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Robert Welch — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Logan, Illinois
Our Model Tree links this Robert Welch across the 1910 and 1920 US Censuses in Logan, Illinois (XGBoost, ~Confirmed) — first a son (b.~1905), then head of a 9-person household.
Age 15
b. ~1905
Male
Son
Born: Illinois
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Logan, Illinois |
| Surname | Welch |
| Given Name | Robert T |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Oran Township |
| Est. Birth Year | ~1905 |
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 1920 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Francis Welch | Daughter | — | 3 | ~1917 |
| Ellen Welch | Daughter | — | 17 | ~1903 |
| William Welch | Son | — | 10 | ~1910 |
| Timothy Welch | Head | — | 57 | ~1863 |
| Robert Welch | Son | — | 15 | ~1905 |
| Leo Welch | Son | — | 5 | ~1915 |
| Margaret Welch | Daughter | — | 7 | ~1913 |
| Margaret Welch | Spouse | — | 42 | ~1878 |
| Rose Welch | Daughter | — | 12 | ~1908 |
Census Appearances
1910
Logan, Illinois
Son, age 5
Logan, Illinois · implied b. ~1905 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welch |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Logan, Illinois
Son, age 15
Logan, Illinois · implied b. ~1905 — 9 household members
| Surname | Welch |
| Given Name | Robert T |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | 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 Robert Welch across 2 US Census years (1910 and 1920) in Logan, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Welch
Son · 1920 · age 15 · b. ~1905 · Illinois
★ You are viewing this record
Sibling
Rose Welch
Sibling · 1920 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Welch
Sibling · 1920 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ellen Welch
Sibling · 1920 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Welch
Sibling · 1920 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Welch
Sibling · 1920 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Welch
Sibling · 1920 · 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
1920 US Federal Census — Logan, Illinois
Open full size
1920 US Federal Census — Logan, Illinois
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu383unit:1101)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Raymond Raymond | 12 | Son | None | Illinois |
| 2 | Bernard Raymond | 8 | Son | None | Illinois |
| 3 | Alice Raymond | 5 | Daughter | None | Illinois |
| 4 | Timothy Welch | 57 | Head | Farmer | Illinois |
| 5 | Margaret Welch | 42 | Wife | None | Illinois |
| 6 | Ellen M Welch | 17 | Daughter | None | Illinois |
| 7 | Robert T Welch THIS PERSON | 15 | Son | None | Illinois |
| 8 | Rose M Welch | 12 | Daughter | None | Illinois |
| 9 | William J Welch | 10 | Son | None | Illinois |
| 10 | Margaret J Welch | 7 | Daughter | None | Illinois |
| 11 | Leo J Welch | 5 | Son | None | Illinois |
| 12 | Francis L Welch | 3 | Daughter | None | Illinois |
| 13 | Jacob Wilmert | 42 | Head | Farmer | Illinois |
| 14 | Cora L Wilmert | 40 | Wife | None | Illinois |
| 15 | Cora Wilmert | 2 | Daughter | None | Illinois |
| 16 | Jacob G Wilmert | 0 | Son | None | Illinois |
| 17 | Sarah Crumpler | 62 | Mother-in-law | None | Virginia |
| 18 | Harry Trigg | 50 | Head | Farmer | Illinois |
| 19 | Nellie J Trigg | 47 | Wife | None | Illinois |
| 20 | Hazel M Trigg | 23 | Daughter | None | Illinois |
| 21 | Charles M Trigg | 18 | Son | None | Illinois |
| 22 | Otis H Trigg | 15 | Son | None | Illinois |
| 23 | Nellie P Trigg | 13 | Daughter | None | Illinois |
| 24 | Francis W Trigg | 10 | Son | None | Illinois |
| 25 | Joseph H Sparrow | 58 | Head | Laborer | Illinois |
| 26 | Millie E Sparrow | 33 | Wife | None | Tennessee |
| 27 | Lorey E Sparrow | 3 | Daughter | None | Illinois |
| 28 | Bertha R Sparrow | 1 | Daughter | None | Illinois |
| 29 | John R Isker | 40 | Head | Farmer | Illinois |
| 30 | Lela A Isker | 33 | Wife | None | Illinois |
| 31 | Linnie P Isker | 16 | Daughter | None | Illinois |
| 32 | Madeline Isker | 13 | Daughter | None | Illinois |
| 33 | Addie Isker | 12 | Daughter | None | Illinois |
| 34 | Dewitt W Price | 28 | Head | Laborer | Tennessee |
| 35 | Mallie A Price | 24 | Wife | None | Tennessee |
| 36 | Ross H Price | 5 | Son | None | Illinois |
| 37 | Ralph L Price | 2 | Son | None | Tennessee |
| 38 | Lewis S Barnwell | 34 | Head | Farmer | Illinois |
| 39 | Rose L Barnwell | 34 | Wife | None | Illinois |
| 40 | Vernon J Barnwell | 12 | Son | None | Illinois |
| 41 | Kenneth D Barnwell | 10 | Son | None | Illinois |
| 42 | William B Michaels | 32 | Head | Farmer | Illinois |
| 43 | Mary L Michaels | 25 | Wife | None | Illinois |
| 44 | John J Michaels | 4 | Son | None | Illinois |
| 45 | Lewis E Dunkle | 26 | Hiredman | Laborer | Illinois |
| 46 | Henry J Matthews | 50 | Head | Laborer | Illinois |
| 47 | Hattie W Matthews | 18 | Daughter | None | Illinois |
| 48 | Viola L Matthews | 16 | Daughter | None | Illinois |
| 49 | Velma L Matthews | 14 | Daughter | None | Illinois |
| 50 | Peter Miller | 52 | Head | Blacksmith | Illinois |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)