MW
Mary Wolfe — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Linn-County, Iowa
Our Model Tree links this Mary Wolfe across the 1930 and 1940 US Censuses in Linn-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 8-person household.
Age 11
b. ~1929
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Linn-County, Iowa |
| Surname | Wolfe |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Mt Vernon town |
| 1935 Residence (County) | Linn |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Mt Vernon Town |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Robert Wolfe | Son | — | 9 | ~1931 |
| Mary Wolfe | Daughter | — | 11 | ~1929 |
| Thomas Wolfe | Son | — | 13 | ~1927 |
| Thomas Wolfe | Head | — | 48 | ~1892 |
| Elizabeth Wolfe | Daughter | — | 15 | ~1925 |
| David Wolfe | Son | — | 7 | ~1933 |
| John Wolfe | Son | — | 14 | ~1926 |
| Wilma Wolfe | Spouse | — | 43 | ~1897 |
Census Appearances
1930
Linn, Iowa
Daughter, age
Linn, Iowa · implied b. ~1930 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wolfe |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Linn-County, Iowa
Daughter, age 11
Linn-County, Iowa · implied b. ~1929 — 8 household members
| Surname | Wolfe |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Mt Vernon town |
| 1935 Residence (County) | Linn |
| Income (1939) | 0 |
| Highest Grade | No 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 Mary Wolfe across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Wolfe
Daughter · 1940 · age 11 · b. ~1929 · Iowa
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Sibling
Elizabeth Wolfe
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Wolfe
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Wolfe
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Wolfe
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Wolfe
Sibling · 1940 · age 7
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 — Linn-County, Iowa
Open full size
1940 US Federal Census — Linn-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01175-00304)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elmer Burge | 75 | Head | — | Iowa |
| 2 | James Burge | 81 | Brother | — | Iowa |
| 3 | Luke B Blaine | 62 | Niece | Housekeeper | Iowa |
| 4 | Nancy A Bryant | 72 | Head | — | Iowa |
| 5 | Stewart Merritt | 43 | Head | Salesman | Iowa |
| 6 | Lucile Merritt | 41 | Wife | — | Iowa |
| 7 | Robert Merritt | 15 | Son | Special Deliv | Iowa |
| 8 | Donald Merritt | 16 | Son | Salesman | Iowa |
| 9 | Mae Mitchell | 54 | Head | — | Iowa |
| 10 | Patricia Mitchell | 18 | Daughter | — | Idaho |
| 11 | Maxine Frostad | 33 | Sister | Helper | Iowa |
| 12 | Emmett M Hunt | 81 | Head | Minister | Iowa |
| 13 | Alice R Hunt | 66 | Wife | — | Iowa |
| 14 | Elizabeth B Kellogg | 73 | Mother in law | — | Ohio |
| 15 | Jean Hunt | 18 | Daughter | — | Iowa |
| 16 | William Ruckenbrod | 27 | Head | Medical Doctor | Iowa |
| 17 | Lenore E Ruckenbrod | 27 | Wife | — | South Dakota |
| 18 | William Jr Ruckenbrod | 1 | Son | — | Iowa |
| 19 | Lula Swartz | 19 | Maid | Maid | Iowa |
| 20 | Clyde T Lindaly | 33 | Head | Superintendent | Iowa |
| 21 | Gladys E Lindaly | 28 | Wife | — | Iowa |
| 22 | Margaret A Lindaly | 2 | Daughter | — | Iowa |
| 23 | Francis F Ebersole | 62 | Head | Medical Doctor | Pennsylvania |
| 24 | Jennette Ebersole | 60 | Wife | — | Pennsylvania |
| 25 | L. J. Bigger | 53 | Head | Dentist | Iowa |
| 26 | Alice Bigger | 49 | Wife | — | Kansas |
| 27 | Alice Marie Bigger | 19 | Daughter | — | Iowa |
| 28 | Lois Bigger | 14 | Daughter | — | Iowa |
| 29 | Thomas Wolfe | 48 | Head | Medical Doctor | Iowa |
| 30 | Wilma Wolfe | 43 | Wife | — | Pennsylvania |
| 31 | Elizabeth Wolfe | 15 | Daughter | — | Iowa |
| 32 | John Wolfe | 14 | Son | — | Iowa |
| 33 | Thomas Jr Wolfe | 13 | Son | — | Iowa |
| 34 | Mary Wolfe THIS PERSON | 11 | Daughter | — | Iowa |
| 35 | Robert Wolfe | 9 | Son | — | Iowa |
| 36 | David Wolfe | 7 | Son | — | Iowa |
| 37 | Pitt Manning | 43 | Head | 15- Decorator | Iowa |
| 38 | Minnie Manning | 52 | Wife | — | Iowa |
| 39 | Jane Hoga | 16 | Stepdaughter | — | Iowa |
| 40 | Edgar Shoemaker | 27 | Head | Photo Finish | 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)