AM
Alice Mcdonald — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Woodbury-County, Iowa
Our Model Tree links this Alice Mcdonald across the 1930 and 1940 US Censuses in Woodbury-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 10-person household.
Age 14
b. ~1926
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Woodbury-County, Iowa |
| Surname | McDonald |
| Given Name | Alice M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Wolf Creek Twp. |
| 1935 Residence (County) | Woodbury |
| Additional Details | |
| Occupation | help housework |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Help Housework |
| Township / Ward | Wolf Creek Twp |
| Est. Birth Year | ~1926 |
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 Alice | Age | Birth yr |
|---|---|---|---|---|
| Elsie Mcdonald | Spouse | — | 36 | ~1904 |
| Donald Mcdonald | Other | — | 36 | ~1904 |
| James Mcdonald | Other | — | 72 | ~1868 |
| Marjorie Mcdonald | Daughter | — | 16 | ~1924 |
| Thos Mcdonald | Head | — | 48 | ~1892 |
| Laura Mcdonald | Daughter | — | 9 | ~1931 |
| Leonard Mcdonald | Son | — | 3 | ~1937 |
| Deloris Mcdonald | Daughter | — | 6 | ~1934 |
| Alice Mcdonald | Daughter | — | 14 | ~1926 |
| Dorothy Mcdonald | Daughter | — | 11 | ~1929 |
Census Appearances
1930
Woodbury, Iowa
Daughter, age 4
Woodbury, Iowa · implied b. ~1926 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | Alice M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Woodbury-County, Iowa
Daughter, age 14
Woodbury-County, Iowa · implied b. ~1926 — 10 household members
| Surname | McDonald |
| Given Name | Alice M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Wolf Creek Twp. |
| 1935 Residence (County) | Woodbury |
| Occupation | help housework |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| 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 Alice Mcdonald across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Alice Mcdonald
Daughter · 1940 · age 14 · b. ~1926 · Iowa
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Sibling
Marjorie Mcdonald
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Mcdonald
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leonard Mcdonald
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Deloris Mcdonald
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Laura Mcdonald
Sibling · 1940 · age 9
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 — Woodbury-County, Iowa
Open full size
1940 US Federal Census — Woodbury-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01214-00446)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George E. Dean | 29 | Head | Farmer | Iowa |
| 2 | Luella H. Dean | 25 | Wife | Farm Helper | Iowa |
| 3 | Georgia L. Dean | 6 | Daughter | — | Iowa |
| 4 | Thos. Mcdonald | 48 | Head | Farmer | Iowa |
| 5 | Elsie M. Mcdonald | 36 | Wife | Farm Helper | Iowa |
| 6 | Marjorie L. Mcdonald | 16 | Daughter | Help Housework | Iowa |
| 7 | Alice M. Mcdonald THIS PERSON | 14 | Daughter | Help Housework | Iowa |
| 8 | Dorothy P. Mcdonald | 11 | Daughter | — | Iowa |
| 9 | Laura L. Mcdonald | 9 | Daughter | — | Iowa |
| 10 | Deloris B. Mcdonald | 6 | Daughter | — | Iowa |
| 11 | Leonard Mcdonald | 3 | Son | — | Iowa |
| 12 | Donald F. Mcdonald | 36 | Brother | Farmer | Iowa |
| 13 | James Mcdonald | 72 | Father | Old Age Pension | Canada |
| 14 | Andrew C. Flynn | 28 | Head | Farmer | Iowa |
| 15 | Sophia M. Flynn | 56 | Mother | Housekeeper | Iowa |
| 16 | Cornelius C. Flynn | 70 | Father | Chores | Iowa |
| 17 | Frank Sawin | 44 | Head | Farmer | Iowa |
| 18 | Elnora Sawin | 36 | Wife | Farm Helper | Iowa |
| 19 | Alvern C. Sawin | 18 | Son | Farmer | Iowa |
| 20 | Charles F. Sawin | 13 | Son | — | Iowa |
| 21 | Robert A. Sawin | 11 | Son | — | Iowa |
| 22 | Pierce D. Sawin | 7 | Son | — | Iowa |
| 23 | Henry S. Sawin | 2 | Son | — | Iowa |
| 24 | Marion L. Sawin | 0 | Daughter | — | Iowa |
| 25 | Engelbert J. Ullrich | 34 | Head | Farmer | Iowa |
| 26 | Ella M. Ullrich | 31 | Wife | Farm Helper | Nebraska |
| 27 | Dolores M. Ullrich | 4 | Daughter | — | Iowa |
| 28 | Julia A. Ullrich | 3 | Daughter | — | Iowa |
| 29 | Betty E. Ullrich | 0 | Daughter | — | Iowa |
| 30 | Cletus Ricktermeter | 30 | hired hand | Laborer | Iowa |
| 31 | Carrie L. Carman | 64 | Head | Housekeeper | Iowa |
| 32 | Ariel V. Carman | 26 | Son | Laborer Driving Truck | Iowa |
| 33 | Royal J. Carman | 22 | Son | Laborer | Iowa |
| 34 | Thos. E. Holliday | 68 | Brother | Old Age Pension | Iowa |
| 35 | Phillip Oregon | 42 | Head | Farming | Iowa |
| 36 | Opal Oregon | 41 | Wife | Farm Helper | Missouri |
| 37 | Darrell P. Oregon | 15 | Son | Chores | Iowa |
| 38 | Kenneth G. Oregon | 13 | Son | — | Iowa |
| 39 | Keith G. Oregon | 13 | Son | — | Iowa |
| 40 | Louise J. Oregon | 4 | Daughter | — | 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)