WS
William Simpson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Polk, Iowa
Our Model Tree links this William Simpson across the 1920, 1930 and 1940 US Censuses in Polk, Iowa (XGBoost, ~Confirmed) — first a head (b.~1870), then head of a 4-person household.
Age 60
b. ~1870
Male
Head
Born: Iowa
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Polk, Iowa |
| Surname | Simpson |
| Given Name | William S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 20 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Radio Set | R |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Elkhart Township |
| Est. Birth Year | ~1870 |
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 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Anna Simpson | Daughter | — | 19 | ~1911 |
| William Simpson | Head | — | 60 | ~1870 |
| Clarence Simpson | Son | — | 41 | ~1889 |
| Mary Simpson | Spouse | — | 59 | ~1871 |
Census Appearances
1920
Polk, Iowa
Head, age 50
Polk, Iowa · implied b. ~1870 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Farmer |
| Industry | own farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Head, age 60
Polk, Iowa · implied b. ~1870 — 4 household members
| Surname | Simpson |
| Given Name | William S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 20 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Radio Set | R |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Head, age 70
Polk-County, Iowa · implied b. ~1870 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | W. H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Elkhart Twp |
| 1935 Residence (County) | Polk |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 24 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Simpson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Simpson
Head · 1930 · age 60 · b. ~1870 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Polk, Iowa
Open full size
1930 US Federal Census — Polk, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel678:0158)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Zora M Holland | 48 | Wife | — | Ohio |
| 52 | Ira Holland | 23 | Son | Laborer | Iowa |
| 53 | Lucile Holland | 20 | Daughter | Filing Clerk | Iowa |
| 54 | Norman Holland | 13 | Son | — | Iowa |
| 55 | Elmer A. Shutts | 65 | Lodger | Laborer | Iowa |
| 56 | James H. Miller | 67 | Head | — | Ohio |
| 57 | Matilda E. Miller | 65 | Wife | — | Iowa |
| 58 | Veda T. Miller | 25 | Daughter | Stenographer | Iowa |
| 59 | Ervin Mead | 55 | Head | Laborer | Missouri |
| 60 | Viola Mead | 48 | Wife | — | Illinois |
| 61 | Gladys Mead | 16 | Daughter | — | Iowa |
| 62 | George Cunningham | 53 | Head | Laborer | Iowa |
| 63 | Alva L. Kendig | 47 | Head | Farmer | Iowa |
| 64 | Mildred M. Kendig | 19 | Wife | — | Iowa |
| 65 | Harley H. Kendig | 25 | Brother | Farmer | Iowa |
| 66 | Frank G. Hall | 37 | Head | Laborer | Iowa |
| 67 | Mary E. Hall | 31 | Wife | — | Iowa |
| 68 | Arthur A. Hall | 9 | Son | — | Iowa |
| 69 | Frank M. Toughman | 40 | Head | Farmer | Iowa |
| 70 | Pearl M. Toughman | 37 | Wife | — | Iowa |
| 71 | Myrtle Toughman | 17 | Daughter | — | Iowa |
| 72 | Mary Toughman | 15 | Daughter | — | Iowa |
| 73 | Laura Toughman | 14 | Daughter | — | Iowa |
| 74 | Burlen Toughman | 11 | Son | — | Iowa |
| 75 | Lois E. Toughman | 10 | Daughter | — | Iowa |
| 76 | Eleanor J. Toughman | 5 | Daughter | — | Iowa |
| 77 | William E. Frederick | 29 | Head | Farmer | Iowa |
| 78 | Edith E. Frederick | 20 | Wife | — | Iowa |
| 79 | William E. Jr. Frederick | 0 | Son | — | Iowa |
| 80 | William S. Simpson THIS PERSON | 60 | Head | Farmer | Iowa |
| 81 | Mary B. Simpson | 59 | Wife | — | Indiana |
| 82 | Clarence Simpson | 41 | Son | Farmer | Iowa |
| 83 | Anna Simpson | 19 | Daughter | — | Iowa |
| 84 | Charles H. Kellen | 56 | Head | Supervisor | Iowa |
| 85 | S. May Kellen | 55 | Wife | — | Iowa |
| 86 | Echo Kellen | 21 | Son | Laborer | Iowa |
| 87 | Irving E. Welch | 61 | Brother-in-law | Laborer | Iowa |
| 88 | Ira S. Sudley | 50 | Head | Farmer | Iowa |
| 89 | Roy E. Whitehead | 43 | Head | Farmer | Illinois |
| 90 | Ethel L. Whitehead | 38 | Wife | — | Iowa |
| 91 | Myrtle E. Whitehead | 8 | Daughter | — | Iowa |
| 92 | Rita L. Whitehead | 1 | Daughter | — | Iowa |
| 93 | Ulysses S. Cunningham | 65 | Head | Laborer | Indiana |
| 94 | David H. Elliott | 66 | Head | Farmer | Indiana |
| 95 | M. Jennie Elliott | 77 | Wife | — | Illinois |
| 96 | Wade S. Durst | 39 | Head | Farmer | West Virginia |
| 97 | Esther F. Durst | 19 | Wife | — | Iowa |
| 98 | Sheldon H. Durst | 2 | Son | — | Iowa |
| 99 | John V. Strait | 38 | Head | Farmer | Iowa |
| 100 | Lillian M. Strait | 32 | Wife | — | 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)