JM
James Macdonald — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Midland-County, Michigan
Our Model Tree links this James Macdonald across the 1930 and 1940 US Censuses in Midland-County, Michigan (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 6-person household.
Age 12
b. ~1928
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Midland-County, Michigan |
| Surname | Macdonald |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Mount Haley Twp |
| 1935 Residence (County) | Midland |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | S 5 |
| 1935 Residence | Same House |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Mount Haley Twp |
| Est. Birth Year | ~1928 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Manuel Macdonald | Son | — | 18 | ~1922 |
| John Macdonald | Son | — | 16 | ~1924 |
| Rhea Macdonald | Spouse | — | 43 | ~1897 |
| Wilbur Macdonald | Son | — | 10 | ~1930 |
| Grover Macdonald | Head | — | 47 | ~1893 |
| James Macdonald | Son | — | 12 | ~1928 |
Census Appearances
1930
Midland, Michigan
Son, age 2
Midland, Michigan · implied b. ~1928 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Midland-County, Michigan
Son, age 12
Midland-County, Michigan · implied b. ~1928 — 6 household members
| Surname | Macdonald |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Mount Haley Twp |
| 1935 Residence (County) | Midland |
| Class of Worker | 0 |
| Highest Grade | S 5 |
| 1935 Residence | Same House |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 James Macdonald across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Macdonald
Son · 1940 · age 12 · b. ~1928 · Michigan
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Sibling
Wilbur Macdonald
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Macdonald
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Manuel Macdonald
Sibling · 1940 · age 18
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 — Midland-County, Michigan
Open full size
1940 US Federal Census — Midland-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01790-00713)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Both | 7 | Son | — | Michigan |
| 2 | Grover Macdonald | 47 | Head | Farmer | Michigan |
| 3 | Rhea Macdonald | 43 | Wife | — | Ohio |
| 4 | Manuel Macdonald | 18 | Son | — | Michigan |
| 5 | John Macdonald | 16 | Son | — | Michigan |
| 6 | James Macdonald THIS PERSON | 12 | Son | — | Michigan |
| 7 | Wilbur Macdonald | 10 | Son | — | Michigan |
| 8 | Albert Willman | 34 | Head | Farmer | Michigan |
| 9 | Eva Willman | 37 | Wife | — | Michigan |
| 10 | June Willman | 5 | Daughter | — | Michigan |
| 11 | Ervin Willman | 3 | Son | — | Michigan |
| 12 | Elmer Willman | 3 | Son | — | Michigan |
| 13 | Albert Willman | 1 | Son | — | Michigan |
| 14 | Frank Jacob | 37 | Head | Loader | Michigan |
| 15 | Helen Jacob | 37 | Wife | — | Michigan |
| 16 | Francis Jacob | 9 | Daughter | — | Michigan |
| 17 | Donald Jacob | 6 | Son | — | Michigan |
| 18 | Jack Jacob | 4 | Son | — | Michigan |
| 19 | Patrick Dear | 73 | Father-in-law | — | Canada |
| 20 | Nellie Dear | 68 | Mother-in-law | — | Michigan |
| 21 | Elmer Sims | 38 | Head | Farmer | Michigan |
| 22 | Ruth Sims | 43 | Wife | — | Iowa |
| 23 | Oliver Jr Sims | 14 | Son | — | California |
| 24 | Orpha Sims | 12 | Daughter | — | California |
| 25 | Charles Sims | 7 | Son | — | California |
| 26 | Walter Miller | 38 | Head | Carpenter | Michigan |
| 27 | Mable Miller | 37 | Wife | — | Michigan |
| 28 | Donald Miller | 15 | Son | — | Michigan |
| 29 | Barbra Miller | 13 | Daughter | — | Michigan |
| 30 | John J. Ryan | 27 | Head | Farmer | Michigan |
| 31 | Bernadette Ryan | 24 | Wife | — | Michigan |
| 32 | Kathleen Ryan | 2 | Daughter | — | Michigan |
| 33 | Mary Ryan | 0 | Daughter | — | Michigan |
| 34 | Sarah Dean | 69 | Head | — | Michigan |
| 35 | Tony Dean | 36 | Son | Truck Driver | Michigan |
| 36 | Thomas Dean | 27 | Son | Fireman | Michigan |
| 37 | Gerald Dean | 14 | Grandson | — | Michigan |
| 38 | William Dean | 34 | Son | Forester | Michigan |
| 39 | Albert Jacob | 67 | Head | — | Michigan |
| 40 | Mary Jacob | 32 | Wife | — | Michigan |
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)