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Anna Mcdonald — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Linn-County, Iowa
Our Model Tree links this Anna Mcdonald across the 1930 and 1940 US Censuses in Linn-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1909), then head of a 8-person household.
Age 31
b. ~1909
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Linn-County, Iowa |
| Surname | McDonald |
| Given Name | Anna M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Cedar Rapids |
| 1935 Residence (County) | Linn |
| Additional Details | |
| Occupation | Laborer |
| Industry | Quaker Oats |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 560 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Laborer |
| Township / Ward | Cedar Rapids |
| Est. Birth Year | ~1909 |
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 Anna | Age | Birth yr |
|---|---|---|---|---|
| Nellie Mcdonald | Daughter | — | 21 | ~1919 |
| Juliet Mcdonald | Daughter | — | 34 | ~1906 |
| W Mcdonald | Head | — | 64 | ~1876 |
| Charles Mcdonald | Son | — | 29 | ~1911 |
| Anna Mcdonald | Daughter | — | 31 | ~1909 |
| Birdie Mcdonald | Spouse | — | 56 | ~1884 |
| George Mcdonald | Son | — | 24 | ~1916 |
| Emma Mcdonald | Daughter | — | 18 | ~1922 |
Census Appearances
1930
Linn, Iowa
Daughter, age 20
Linn, Iowa · implied b. ~1910 — 14 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | Anna M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Irish Free State |
| Occupation | Operator |
| Industry | Telephone Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Linn-County, Iowa
Daughter, age 31
Linn-County, Iowa · implied b. ~1909 — 8 household members
| Surname | McDonald |
| Given Name | Anna M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Cedar Rapids |
| 1935 Residence (County) | Linn |
| Occupation | Laborer |
| Industry | Quaker Oats |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 560 |
| 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 Anna Mcdonald across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Anna Mcdonald
Daughter · 1940 · age 31 · b. ~1909 · Iowa
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Sibling
Charles Mcdonald
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nellie Mcdonald
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emma Mcdonald
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Mcdonald
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Juliet Mcdonald
Sibling · 1940 · age 34
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-t0627-01176-00617)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ellen Weathers | 52 | Head | Maid | Missouri |
| 42 | — | None | — | — | — |
| 43 | William Harnisch | 42 | Head | — | Maryland |
| 44 | Viola Harnisch | 36 | Wife | — | Iowa |
| 45 | Betty Harnisch | 11 | Daughter | — | Iowa |
| 46 | Opal Harnisch | 9 | Daughter | — | Iowa |
| 47 | Billie Harnisch | 7 | Son | — | Iowa |
| 48 | Shirley Harnisch | 5 | Daughter | — | Iowa |
| 49 | John Thompson | 29 | Head | Butcher | Iowa |
| 50 | Mary Thompson | 29 | Wife | — | Iowa |
| 51 | Rosella Thompson | 9 | Daughter | — | Iowa |
| 52 | Harley Clymer | 26 | Head | Laborer | Iowa |
| 53 | Alma Clymer | 22 | Wife | Bill-Er | Iowa |
| 54 | M. H. Gladwin | 39 | Head | Butcher | Iowa |
| 55 | Ila Gladwin | 38 | Wife | — | Kansas |
| 56 | Harley S. Gladwin | 18 | Son | New Worker | Iowa |
| 57 | Verno Gladwin | 16 | Son | — | Iowa |
| 58 | Marvin Leon Gladwin | 3 | Son | — | Iowa |
| 59 | Carol Jean Gladwin | 3 | Daughter | — | Iowa |
| 60 | W. G. Mcdonald | 64 | Head | Home Agency | Iowa |
| 61 | Birdie Mcdonald | 56 | Wife | — | Ireland |
| 62 | Juliet Mcdonald | 34 | Daughter | Sales Clerk | Iowa |
| 63 | Anna M. Mcdonald THIS PERSON | 31 | Daughter | Laborer | Iowa |
| 64 | Charles Mcdonald | 29 | Son | Painter | Iowa |
| 65 | George Mcdonald | 24 | Son | Painter | Iowa |
| 66 | Nellie Mcdonald | 21 | Daughter | House Work | Iowa |
| 67 | Emma Mcdonald | 18 | Daughter | New Worker | Iowa |
| 68 | Samuel Orr | 53 | Head | Carpenter | Iowa |
| 69 | Harrold Orr | 20 | Son | New Worker | Iowa |
| 70 | Betty Orr | 18 | Daughter-in-law | — | Iowa |
| 71 | Harold Jr. Orr | 1 | Grandson | — | Iowa |
| 72 | Betty Elaine Orr | 0 | Granddaughter | — | Iowa |
| 73 | Lottie Corporon | 56 | Keeper | House Keeper | Iowa |
| 74 | Leland Lee Nichols | 43 | Head | Quarry Man | Iowa |
| 75 | Alma Nichols | 36 | Wife | — | Iowa |
| 76 | Mary Jane Nichols | 6 | Daughter | — | Missouri |
| 77 | Marilyn Jean Nichols | 6 | Daughter | — | Iowa |
| 78 | Priscilla Mae Nichols | 1 | Daughter | — | Iowa |
| 79 | Thomas J. Randall | 54 | Head | Laborer | Mississippi |
| 80 | Mary Randall | 34 | Wife | — | Nebraska |
Related Census Records
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)