MK
Margaret King — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Audubon-County, Iowa
Our Model Tree links this Margaret King across the 1920, 1930 and 1940 US Censuses in Audubon-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1888), then head of a 5-person household.
Age 52
b. ~1888
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Audubon-County, Iowa |
| Surname | King |
| Given Name | Margaret S. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Cameron Twp |
| 1935 Residence (County) | Audubon |
| Additional Details | |
| Hours Worked | 5 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Cameron Twp |
| Est. Birth Year | ~1888 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Helen King | Daughter | — | 19 | ~1921 |
| Lucille King | Daughter | — | 15 | ~1925 |
| Charlie King | Head | — | 53 | ~1887 |
| Robert King | Son | — | 43 | ~1897 |
| Margaret King | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Audubon, Iowa
Spouse, age 32
Audubon, Iowa · implied b. ~1888 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Audubon, Iowa
Spouse, age 42
Audubon, Iowa · implied b. ~1888 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 23 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Audubon-County, Iowa
Spouse, age 52
Audubon-County, Iowa · implied b. ~1888 — 5 household members
| Surname | King |
| Given Name | Margaret S. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Cameron Twp |
| 1935 Residence (County) | Audubon |
| Hours Worked | 5 |
| Highest Grade | H 4 |
| 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 Margaret King across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Margaret King
Spouse · 1940 · age 52 · b. ~1888 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Audubon-County, Iowa
Open full size
1940 US Federal Census — Audubon-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01137-00748)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Anna Bauer | 50 | Wife | — | France |
| 42 | Victor Bauer | 21 | Son | Farmer | Iowa |
| 43 | Donald H. Ashman | 28 | Head | Farmer | Iowa |
| 44 | Gladys L. Ashman | 22 | Wife | — | Iowa |
| 45 | Leila Kay Ashman | 2 | Daughter | — | Iowa |
| 46 | Leonard Prong | 25 | Head | Farmer | Iowa |
| 47 | Eloise M. Prong | 22 | Wife | — | Iowa |
| 48 | Gay L. A. Prong | 5 | Daughter | — | Iowa |
| 49 | Marilyn J. Prong | 3 | Daughter | — | Iowa |
| 50 | Linda J. Prong | 2 | Daughter | — | Iowa |
| 51 | Jeanette L. Prong | 1 | Daughter | — | Iowa |
| 52 | Irving H. Wenig | 50 | Head | Farmer | Iowa |
| 53 | Jennie L. Wenig | 48 | Wife | — | Iowa |
| 54 | Mildred M. Wenig | 20 | Daughter | Teacher | Iowa |
| 55 | Ethel E. Wenig | 19 | Daughter | — | Iowa |
| 56 | Thomas T. Wenig | 11 | Son | — | Iowa |
| 57 | James T. O. Shaw | 59 | Head | Farmer | Iowa |
| 58 | Nettie M. Shaw | 54 | Wife | — | Iowa |
| 59 | William A. Shaw | 26 | Son | Laborer | Iowa |
| 60 | James H. Shaw | 18 | Son | Farmer | Iowa |
| 61 | Emerald L. Shaw | 15 | Daughter | — | Iowa |
| 62 | Billy Shaw | 12 | Son | — | Iowa |
| 63 | Charlie E. King | 53 | Head | Farmer | Illinois |
| 64 | Margaret S. King THIS PERSON | 52 | Wife | — | Iowa |
| 65 | Helen L. King | 19 | Daughter | — | Iowa |
| 66 | Lucille Mae King | 15 | Daughter | — | Iowa |
| 67 | Robert Albert King | 43 | Son | Laborer | Iowa |
| 68 | Elizabeth Shaw | 57 | Head | Farmer | Iowa |
| 69 | Frederick A. Shaw | 24 | Hired man | Laborer | South Dakota |
| 70 | Hans R. Steen | 50 | Head | Farmer | Denmark |
| 71 | Anna K. Steen | 47 | Wife | — | Denmark |
| 72 | Arthur B. Steen | 21 | Son | Farmer | Iowa |
| 73 | Hans G. Steen | 19 | Son | Farmer | Iowa |
| 74 | Leonard C. Steen | 16 | Son | — | Iowa |
| 75 | Esther Mary Steen | 8 | Daughter | — | Iowa |
| 76 | William R. Lewis | 25 | Head | Farmer | Iowa |
| 77 | Elizabeth Lewis | 49 | Sister | — | Iowa |
| 78 | Raymond Robinson | 32 | Head | Laborer | Kansas |
| 79 | Beulah Robinson | 30 | Wife | — | Iowa |
| 80 | Kenneth Robinson | 9 | Son | — | Iowa |
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)