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William Briggs — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Morgan-County, Illinois
Our Model Tree links this William Briggs across the 1930 and 1940 US Censuses in Morgan-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 7-person household.
Age 14
b. ~1926
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Morgan-County, Illinois |
| Surname | Briggs |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Springfield |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Jacksonville |
| Est. Birth Year | ~1926 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Margery Briggs | Spouse | — | 35 | ~1905 |
| William Briggs | Son | — | 14 | ~1926 |
| William Mitchell | Other | — | 23 | ~1917 |
| Richard Briggs | Son | — | 6 | ~1934 |
| Frank Briggs | Head | — | 41 | ~1899 |
| Robert Mitchell | Daughter | — | 17 | ~1923 |
| Ida Briggs | Daughter | — | 1 | ~1939 |
Census Appearances
1930
Morgan, Illinois
Son, age 4
Morgan, Illinois · implied b. ~1926 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Briggs |
| Given Name | William F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Morgan-County, Illinois
Son, age 14
Morgan-County, Illinois · implied b. ~1926 — 7 household members
| Surname | Briggs |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Springfield |
| Highest Grade | No 5 |
| 1935 Residence | Illinois |
| 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 William Briggs across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Briggs
Son · 1940 · age 14 · b. ~1926 · Illinois
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Sibling
Robert Mitchell
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ida Briggs
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Briggs
Sibling · 1940 · age 6
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 — Morgan-County, Illinois
Open full size
1940 US Federal Census — Morgan-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00861-00303)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lulu M. Gaither | 55 | Head | Machine Operator | Kansas |
| 42 | Grace Lamb | 66 | Cousin | — | Illinois |
| 43 | John E. Shady | 45 | Head | Proprietor | Illinois |
| 44 | Alma S. Shady | 43 | Wife | Finisher | Illinois |
| 45 | — | None | — | — | — |
| 46 | John Brasel | 50 | Head | Janitor | Illinois |
| 47 | Wilma Brasel | 49 | Wife | — | Illinois |
| 48 | Ilene Brasel | 23 | Daughter | Picker | Illinois |
| 49 | Melvin Brasel | 15 | Son | — | Illinois |
| 50 | Martha Brasel | 8 | Daughter | — | Illinois |
| 51 | Hiram Huff | 68 | Head | Baker | Illinois |
| 52 | Edith E. Huff | 59 | Wife | — | Illinois |
| 53 | William Leav | 72 | Head | Laborer | Illinois |
| 54 | Russell Curtis | 29 | Son-in-law | Loader | Illinois |
| 55 | Annette Curtis | 28 | Daughter | — | Illinois |
| 56 | Harold Robert Curtis | 6 | Son | — | Illinois |
| 57 | Gary Allen Curtis | 4 | Son | — | Illinois |
| 58 | Frank Briggs | 41 | Head | Truck Driver | Illinois |
| 59 | Margery Briggs | 35 | Wife | — | Illinois |
| 60 | Robert Mitchell | 17 | Daughter | — | Illinois |
| 61 | William Mitchell | 23 | Son-in-law | Laborer | Illinois |
| 62 | William Briggs THIS PERSON | 14 | Son | — | Illinois |
| 63 | Richard Briggs | 6 | Son | — | Illinois |
| 64 | Ida Briggs | 1 | Daughter | — | Illinois |
| 65 | Harold Eugene Snickly | 23 | Head | Mechanic | Kansas |
| 66 | Margaret Wilma Snickly | 25 | Wife | — | Illinois |
| 67 | Cheryl Ann Snickly | 3 | Daughter | — | Illinois |
| 68 | Joseph William Snickly | 1 | Son | — | Illinois |
| 69 | Augusta Newstead | 41 | Head | Seamstress | Maryland |
| 70 | Anna Bergland | 77 | Lodger | Relief | Sweden |
| 71 | Benjamin J. Northcutt | 75 | Head | — | Missouri |
| 72 | Ida Northcutt | 58 | Wife | — | Illinois |
| 73 | Elizabeth Krause | 58 | Lodger | Saleslady | Illinois |
| 74 | John Henderson Huff | 57 | Head | Painter | Illinois |
| 75 | Percy Mary Huff | 57 | Wife | Laundry Worker | Illinois |
| 76 | Doris Elizabeth Huff | 20 | Daughter | — | Illinois |
| 77 | R. L. Huff | 65 | Head | — | Illinois |
| 78 | Daisy Huff | 58 | Wife | Laundry Worker | Illinois |
| 79 | Paul Emory Shady | 20 | Head | Proprietor | Illinois |
| 80 | Alice Shady | 20 | Wife | Machine Operator | Illinois |
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)