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Martha Young — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Audubon-County, Iowa
Our Model Tree links this Martha Young across the 1930 and 1940 US Censuses in Audubon-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 10-person household.
Age 11
b. ~1929
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Audubon-County, Iowa |
| Surname | Young |
| Given Name | Martha L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Audubon |
| 1935 Residence (County) | Audubon |
| Additional Details | |
| Highest Grade | 3 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Audubon City |
| Est. Birth Year | ~1929 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Martha Young | Daughter | — | 11 | ~1929 |
| Roy Young | Head | — | 46 | ~1894 |
| Roy Young | Son | — | 18 | ~1922 |
| Gene Young | Son | — | 4 | ~1936 |
| Charles Young | Son | — | 20 | ~1920 |
| Floyd Young | Son | — | 2 | ~1938 |
| Glenn Young | Son | — | 7 | ~1933 |
| Robert Young | Son | — | 14 | ~1926 |
| Francis Young | Son | — | 16 | ~1924 |
| Ellen Young | Spouse | — | 40 | ~1900 |
Census Appearances
1930
Audubon, Iowa
Daughter, age 2
Audubon, Iowa · implied b. ~1928 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Young |
| Given Name | Martha L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Audubon-County, Iowa
Daughter, age 11
Audubon-County, Iowa · implied b. ~1929 — 10 household members
| Surname | Young |
| Given Name | Martha L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Audubon |
| 1935 Residence (County) | Audubon |
| Highest Grade | 3 |
| 1935 Residence | Iowa |
| 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 Martha Young across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Martha Young
Daughter · 1940 · age 11 · b. ~1929 · Iowa
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Sibling
Floyd Young
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gene Young
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Young
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Young
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Glenn Young
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roy Young
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Young
Sibling · 1940 · age 16
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 — 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-t0627-01137-00887)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George Sorenson | 42 | Head | Manager | Iowa |
| 2 | Marie Sorenson | 42 | Wife | — | Iowa |
| 3 | Lydia Rogers | 40 | Lodger | Teacher | Iowa |
| 4 | Alfred Haals | 30 | Head | Manager | Iowa |
| 5 | Alma Haals | 30 | Wife | — | Iowa |
| 6 | Gerald J. Haals | 3 | Son | — | Iowa |
| 7 | Harlan Griffin | 32 | Head | Salesman | Iowa |
| 8 | Claire Griffin | 32 | Wife | — | Iowa |
| 9 | George Kauffman | 40 | Head | Laborer | Kansas |
| 10 | Henrietta Kauffman | 40 | Wife | — | Iowa |
| 11 | George Kauffman | 18 | Son | Salesman | Iowa |
| 12 | Mary F. Kauffman | 16 | Daughter | — | Iowa |
| 13 | Lois Kauffman | 14 | Daughter | — | Iowa |
| 14 | Charlotte A. Kauffman | 9 | Daughter | — | Iowa |
| 15 | Gordon S. Kauffman | 6 | Son | — | Iowa |
| 16 | Clark A. Kauffman | 4 | Son | — | Iowa |
| 17 | Charles D. Kauffman | 1 | Son | — | Iowa |
| 18 | Delbert Mckeig | 38 | Head | Operator | Iowa |
| 19 | Ella Mckeig | 34 | Wife | — | Iowa |
| 20 | Alva Mckeig | 65 | Father | — | Iowa |
| 21 | William Simeon | 78 | Head | — | Iowa |
| 22 | Carrie Simeon | 78 | Wife | — | Iowa |
| 23 | Roy Young | 46 | Head | Laborer | Iowa |
| 24 | Ellen E. Young | 40 | Wife | — | Iowa |
| 25 | Charles L. Young | 20 | Son | Laborer | Iowa |
| 26 | Roy W. Young | 18 | Son | — | Iowa |
| 27 | Francis J. Young | 16 | Son | — | Iowa |
| 28 | Robert E. Young | 14 | Son | — | Iowa |
| 29 | Martha L. Young THIS PERSON | 11 | Daughter | — | Iowa |
| 30 | Glenn M. Young | 7 | Son | — | Iowa |
| 31 | Gene Young | 4 | Son | — | Iowa |
| 32 | Floyd Young | 2 | Son | — | Iowa |
| 33 | William J. Campbell | 75 | Head | Real Estate | Illinois |
| 34 | Mary E. Campbell | 70 | Wife | — | Iowa |
| 35 | Kenneth Berentzen | 24 | Head | Egg Grader | Iowa |
| 36 | Cecil Berentzen | 20 | Wife | Beautician | Iowa |
| 37 | Levi Kopp | 87 | Head | — | Wisconsin |
| 38 | Alice Kopp | 84 | Wife | — | Illinois |
| 39 | Alice B. Cebert | 77 | Head | — | Pennsylvania |
| 40 | Vernon C. Burke | 47 | Head | Contractor | Nebraska |
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)