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Martha Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Ottawa-County, Michigan
Our Model Tree links this Martha Brown across the 1920, 1930 and 1940 US Censuses in Ottawa-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 3-person household.
Age 50
b. ~1890
Female
Head
Born: Michigan
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Ottawa-County, Michigan |
| Surname | Brown |
| Given Name | Martha |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Widowed |
| Birthplace | Michigan |
| 1935 Residence (City) | Holland City |
| 1935 Residence (County) | Ottawa |
| Additional Details | |
| Industry | No |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Holland City |
| Est. Birth Year | ~1890 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Martha Brown | Head | — | 50 | ~1890 |
| Julian Brown | Son | — | 25 | ~1915 |
| Preston Brown | Son | — | 23 | ~1917 |
Census Appearances
1920
Ottawa, Michigan
Spouse, age 30
Ottawa, Michigan · implied b. ~1890 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Ottawa, Michigan
Spouse, age 40
Ottawa, Michigan · implied b. ~1890 — 20 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 23 |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Ottawa-County, Michigan
Head, age 50
Ottawa-County, Michigan · implied b. ~1890 — 3 household members
| Surname | Brown |
| Given Name | Martha |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Widowed |
| Birthplace | Michigan |
| 1935 Residence (City) | Holland City |
| 1935 Residence (County) | Ottawa |
| Industry | No |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 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 Martha Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Martha Brown
Head · 1940 · age 50 · b. ~1890 · Michigan
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Ottawa-County, Michigan
Open full size
1940 US Federal Census — Ottawa-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01809-00040)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mabel Le Jeune | 46 | wife | — | Michigan |
| 42 | James Le Jeune | 17 | son | — | Michigan |
| 43 | Marilyn Le Jeune | 6 | daughter | — | Michigan |
| 44 | Patricia Le Jeune | 3 | daughter | — | Michigan |
| 45 | Christie Wiltman | 16 | niece | — | Michigan |
| 46 | Harvey Zoerhoff | 38 | head | Carpenter | Michigan |
| 47 | Mabel Zoerhoff | 39 | wife | — | Michigan |
| 48 | Laverne J. Zoerhoff | 10 | son | — | Michigan |
| 49 | Rosaly J. Zoerhoff | 8 | daughter | — | Michigan |
| 50 | C. L. Bohannan | 45 | head | Asst. Superintendent | Minnesota |
| 51 | Josephine Bohannan | 39 | wife | — | Michigan |
| 52 | Clinton Diekman | 36 | head | Field Manager | Illinois |
| 53 | Kathryn Diekman | 34 | wife | — | Illinois |
| 54 | Charlotte Kole | 67 | head | — | Michigan |
| 55 | Ruth K. Hoover | 37 | daughter | Secretary | Michigan |
| 56 | Clifford J. Bole | 30 | son | Const. Inspector | Michigan |
| 57 | Margaret M. Bole | 31 | daughter-in-law | — | Indiana |
| 58 | Elaine Bole | 10 | granddaughter | — | Illinois |
| 59 | Larry Bole | 9 | grandson | — | Michigan |
| 60 | Douglas Bole | 8 | grandson | — | Michigan |
| 61 | Martha Brown THIS PERSON | 50 | head | — | Michigan |
| 62 | Julian Brown | 25 | son | Trimmer | Michigan |
| 63 | Preston Brown | 23 | son | Assembler | Michigan |
| 64 | George R. Vander Bee | 54 | head | Grinder | Michigan |
| 65 | Nellie Vander Bee | 49 | wife | — | Michigan |
| 66 | Edward Vander Bee | 20 | son | Mechanic | Michigan |
| 67 | Marian Vander Bee | 18 | daughter | — | Michigan |
| 68 | George Jr. Vander Bee | 17 | son | — | Michigan |
| 69 | Simon Wyhema | 55 | head | Finisher | Netherlands |
| 70 | Effie Wyhema | 54 | wife | — | Netherlands |
| 71 | Gerrit Wyhema | 19 | son | Helper | Michigan |
| 72 | Bernard Wyhema | 17 | son | — | Michigan |
| 73 | Peter Wyhema | 15 | son | — | Michigan |
| 74 | Cornelius Wyhema | 12 | son | — | Michigan |
| 75 | Mary Woodruff | 61 | head | — | Netherlands |
| 76 | Julius Brown | 74 | head | Cabinet-Maker | Michigan |
| 77 | Clara Brown | 74 | wife | — | Michigan |
| 78 | Carole J. Brown | 12 | daughter | — | Michigan |
| 79 | Gerhardus H. Derks | 54 | head | Stock Man | Netherlands |
| 80 | Anna Derks | 61 | wife | — | Wisconsin |
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)