MR
Mary Randall — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wapello-County, Iowa
Our Model Tree links this Mary Randall across the 1930 and 1940 US Censuses in Wapello-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 9-person household.
Age 13
b. ~1927
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wapello-County, Iowa |
| Surname | Randall |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Ottumwa City |
| 1935 Residence (County) | Wapello County |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | G-7 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Ottumwa City |
| Est. Birth Year | ~1927 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Raymond Randall | Son | — | 20 | ~1920 |
| Donald Randall | Son | — | 18 | ~1922 |
| Della Randall | Spouse | — | 55 | ~1885 |
| Madeline Christie | Daughter | — | 22 | ~1918 |
| Constance Christie | Other | — | 2 | ~1938 |
| Kenneth Randall | Son | — | 15 | ~1925 |
| Elmer Randall | Head | — | 56 | ~1884 |
| Barbara Randall | Other | — | 6 | ~1934 |
| Mary Randall | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Wapello, Iowa
Daughter, age 1
Wapello, Iowa · implied b. ~1929 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Randall |
| Given Name | Mary R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Illinois |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Wapello-County, Iowa
Daughter, age 13
Wapello-County, Iowa · implied b. ~1927 — 9 household members
| Surname | Randall |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Ottumwa City |
| 1935 Residence (County) | Wapello County |
| Income (1939) | 0 |
| Highest Grade | G-7 |
| 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 Randall across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Randall
Daughter · 1940 · age 13 · b. ~1927 · Iowa
★ You are viewing this record
Sibling
Madeline Christie
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Randall
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Randall
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Randall
Sibling · 1940 · age 20
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 — Wapello-County, Iowa
Open full size
1940 US Federal Census — Wapello-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01209-00399)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Emma C. Hallgren | 57 | Wife | — | Sweden |
| 2 | Donald R. Hallgren | 18 | Son | Checker | Iowa |
| 3 | William B. Bales | 37 | Head | Butcher | Iowa |
| 4 | Mary M. Bales | 33 | Wife | Stenographer | Iowa |
| 5 | Junie Gower | 68 | Mother-in-law | — | Iowa |
| 6 | Anton S. Carlson | 53 | Head | Bus Driver | Sweden |
| 7 | Esther S. Carlson | 51 | Wife | — | Iowa |
| 8 | Louise D. Carlson | 24 | Daughter | Clerk | Iowa |
| 9 | Jerry L. Wood | 31 | Head | Deputy Sheriff | Iowa |
| 10 | Elizabeth C. Wood | 31 | Wife | — | Iowa |
| 11 | Joan L. Wood | 5 | Daughter | — | Iowa |
| 12 | Ray Mack | 34 | Head | Employer | Iowa |
| 13 | Alice Mack | 29 | Wife | — | Iowa |
| 14 | Parrell Mack | 5 | Son | — | Iowa |
| 15 | Elmer E. Randall | 56 | Head | Machinist | Kansas |
| 16 | Della Randall | 55 | Wife | — | Illinois |
| 17 | Raymond Randall | 20 | Son | — | Iowa |
| 18 | Donald Randall | 18 | Son | — | Iowa |
| 19 | Kenneth Randall | 15 | Son | — | Iowa |
| 20 | Mary Randall THIS PERSON | 13 | Daughter | — | Iowa |
| 21 | Madeline Christie | 22 | Daughter | — | Iowa |
| 22 | Constance M. Christie | 2 | Granddaughter | — | Iowa |
| 23 | Barbara J. Randall | 6 | Granddaughter | — | Iowa |
| 24 | Anton L. Swanson | 47 | Head | Foreman | Iowa |
| 25 | Edna Swanson | 50 | Wife | — | Iowa |
| 26 | Alex Swanson | 21 | Son | Rug-Layer | Iowa |
| 27 | Frances Swanson | 22 | Daughter | Salesgirl | Iowa |
| 28 | Henry E. Zulauf | 61 | Head | Butcher | Iowa |
| 29 | Maude L. Zulauf | 43 | Wife | Clerk | Pennsylvania |
| 30 | Clarence R. White | 43 | Head | — | Illinois |
| 31 | Sadie L. White | 45 | Wife | Saleswoman | Missouri |
| 32 | Charles H. Hart | 35 | Head | Switchman | Iowa |
| 33 | Velma Hart | 34 | Wife | — | Iowa |
| 34 | Hazel Hart | 15 | Daughter | — | Iowa |
| 35 | Herman D. Robinson | 72 | Head | — | Iowa |
| 36 | Marie A. Robinson | 65 | Wife | — | Iowa |
| 37 | William H. Huston | 53 | Head | Conductor | Iowa |
| 38 | Wynona Huston | 51 | Wife | — | Iowa |
| 39 | Paul A. Mcdevitt | 28 | Head | Laborer | Iowa |
| 40 | Margaret L. Mcdevitt | 27 | Wife | — | 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)