WS
William Sparks — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Winnebago, Illinois
Our Model Tree links this William Sparks across the 1930 and 1940 US Censuses in Winnebago, Illinois (XGBoost, ~Confirmed) — first a son (b.~1914), then head of a 7-person household.
Age 16
b. ~1914
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Winnebago, Illinois |
| Surname | Sparks |
| Given Name | William C. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Rockford City |
| Est. Birth Year | ~1914 |
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 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Margaret Sparks | Spouse | — | 50 | ~1880 |
| Mary Sparks | Daughter | — | 14 | ~1916 |
| William Sparks | Son | — | 16 | ~1914 |
| Mary Sparks | Other | — | 70 | ~1860 |
| William Sparks | Head | — | 52 | ~1878 |
| Hilda Ekstrom | Other | — | 24 | ~1906 |
| Allen Sparks | Son | — | 25 | ~1905 |
Census Appearances
1930
Winnebago, Illinois
Son, age 16
Winnebago, Illinois · implied b. ~1914 — 7 household members
| Surname | Sparks |
| Given Name | William C. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Winnebago-County, Illinois
Son, age 26
Winnebago-County, Illinois · implied b. ~1914 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sparks |
| Given Name | Will C. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rockford city |
| 1935 Residence (County) | Winnebago |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| 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 Sparks across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Sparks
Son · 1930 · age 16 · b. ~1914 · Illinois
★ You are viewing this record
Sibling
Mary Sparks
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Allen Sparks
Sibling · 1930 · age 25
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 — Winnebago, Illinois
Open full size
1930 US Federal Census — Winnebago, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel572:0151)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | F. Warren Warren | 11 | Son | — | Wisconsin |
| 2 | Iva Plager | 24 | Maid | Maid | Illinois |
| 3 | Victor H. Recht | 38 | Head | Salesman | Wisconsin |
| 4 | Roslyn Recht | 32 | Wife | — | Minnesota |
| 5 | Victor Jr. Recht | 4 | Son | — | New York |
| 6 | Barbara J. Recht | 2 | Daughter | — | New York |
| 7 | William S. Parker | 53 | Head | Engineer (Civil) | Wisconsin |
| 8 | Mattie Parker | 51 | Wife | — | Illinois |
| 9 | Ernest C. Stokburger | 50 | Head | Salesman | Illinois |
| 10 | Maude Stokburger | 44 | Wife | — | Illinois |
| 11 | Marian Stokburger | 20 | Daughter | — | Illinois |
| 12 | Dorothy Stokburger | 18 | Daughter | — | Illinois |
| 13 | Ernestine Stokburger | 17 | Daughter | — | Illinois |
| 14 | Arthur H. Lyon | 52 | Head | Chief Engineer | Ohio |
| 15 | Henrietta Lyon | 44 | Wife | — | Ohio |
| 16 | John P. Lyon | 18 | Son | — | Illinois |
| 17 | Mary M. Lyon | 13 | Daughter | — | Illinois |
| 18 | John C. Kane | 60 | Head | Contractor | Wisconsin |
| 19 | Mary L. Kane | 50 | Wife | — | Illinois |
| 20 | John C. Kane | 17 | Son | — | Illinois |
| 21 | Helen V. Kane | 13 | Daughter | — | Illinois |
| 22 | Helen Bond | 28 | Maid | Maid | Illinois |
| 23 | Elizabeth F. Cusack | 35 | Employee | Trained Nurse | Ireland |
| 24 | Annie B. Wallin | 50 | Head | Teacher | Pennsylvania |
| 25 | Mary H. Wallin | 49 | Sister | — | Pennsylvania |
| 26 | Helen A. Wallin | 44 | Sister | — | Missouri |
| 27 | Anna R. Grandtman | 67 | Head | — | Massachusetts |
| 28 | Howard C. Gregory | 43 | Head | Secretary | Illinois |
| 29 | Alice J. Gregory | 42 | Wife | — | Illinois |
| 30 | Elizabeth J. Gregory | 13 | Daughter | — | Illinois |
| 31 | Margaret Gregory | 9 | Daughter | — | Illinois |
| 32 | Priscilla Gregory | 7 | Daughter | — | Illinois |
| 33 | Carl G. Gregory | 4 | Son | — | Illinois |
| 34 | Guy E. Williams | 47 | Head | Salesman | Wisconsin |
| 35 | Gertrude Williams | 46 | Wife | — | Illinois |
| 36 | Frances Williams | 16 | Daughter | — | Illinois |
| 37 | Isabel F. Parkhuff | 72 | Head | Teacher | Illinois |
| 38 | Ferguson Sophia A. Parkhuff | 74 | Sister | — | New York |
| 39 | Thomas Sarah J. Parkhuff | 59 | Sister | Teacher | Illinois |
| 40 | John T. Baker | 81 | Head | — | Illinois |
| 41 | Edna Baker | 71 | Wife | — | Illinois |
| 42 | Grace Baker | 51 | Son | — | Illinois |
| 43 | Edward D. Schandler | 77 | Head | — | New Hampshire |
| 44 | William C. Sparks | 52 | Head | Salesman | Indiana |
| 45 | Margaret A. Sparks | 50 | Wife | — | Indiana |
| 46 | Allen L. Sparks | 25 | Son | Salesman | Indiana |
| 47 | William C. Jr. Sparks THIS PERSON | 16 | Son | — | Illinois |
| 48 | Mary C. Sparks | 14 | Daughter | — | Illinois |
| 49 | Mary P. Sparks | 70 | Mother | — | Indiana |
| 50 | Hilda Ekstrom | 24 | Maid | Servant | Sweden |
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)