MH
Margaret Hart — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Genesee-County, Michigan
Our Model Tree links this Margaret Hart across the 1930 and 1940 US Censuses in Genesee-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 10-person household.
Age 10
b. ~1930
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Genesee-County, Michigan |
| Surname | Hart |
| Given Name | Margaret A |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Unincorporated place Northgate Heights |
| 1935 Residence (County) | Genesee |
| Additional Details | |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Unincorporated Place Northgate Heights |
| Est. Birth Year | ~1930 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Rosemary Hart | Daughter | — | 4 | ~1936 |
| Kenneth Hart | Son | — | 5 | ~1935 |
| Margaret Hart | Daughter | — | 10 | ~1930 |
| Max Hart | Son | — | 1 | ~1939 |
| Earl Hart | Head | — | 47 | ~1893 |
| Jacquelyn Hart | Daughter | — | 3 | ~1937 |
| Anna Hart | Spouse | — | 39 | ~1901 |
| Wilma Hart | Daughter | — | 18 | ~1922 |
| Earl Hart | Son | — | 15 | ~1925 |
| Joy Hart | Daughter | — | 12 | ~1928 |
Census Appearances
1930
Genesee, Michigan
Daughter, age
Genesee, Michigan · implied b. ~1930 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Heart |
| Given Name | Margaret A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | North Carolina |
| Occupation | none |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Genesee-County, Michigan
Daughter, age 10
Genesee-County, Michigan · implied b. ~1930 — 10 household members
| Surname | Hart |
| Given Name | Margaret A |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Unincorporated place Northgate Heights |
| 1935 Residence (County) | Genesee |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| 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 Margaret Hart across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Hart
Daughter · 1940 · age 10 · b. ~1930 · Michigan
★ You are viewing this record
Sibling
Max Hart
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jacquelyn Hart
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wilma Hart
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosemary Hart
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Hart
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joy Hart
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Earl Hart
Sibling · 1940 · age 15
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 — Genesee-County, Michigan
Open full size
1940 US Federal Census — Genesee-County, Michigan
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01750-00626)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Violet Olmstead | 28 | Wife | Waitress | Michigan |
| 42 | Rosalyn Olmstead | 11 | daughter | — | Michigan |
| 43 | Donald Olmstead | 10 | son | — | Michigan |
| 44 | Charlotte Olmstead | 9 | daughter | — | Michigan |
| 45 | Marjorie Olmstead | 8 | daughter | — | Michigan |
| 46 | Glenn Olmstead | 1 | son | — | Michigan |
| 47 | John Smelser | 43 | Head | Machine Operator | Michigan |
| 48 | Emily Smelser | 57 | Wife | — | New York |
| 49 | Earl A Hart | 47 | Head | Machine Operator | Michigan |
| 50 | Anna Hart | 39 | Wife | — | North Carolina |
| 51 | Wilma Hart | 18 | daughter | Maid | Michigan |
| 52 | Earl Jr Hart | 15 | son | — | Michigan |
| 53 | Joy Hart | 12 | daughter | — | Michigan |
| 54 | Margaret A Hart THIS PERSON | 10 | daughter | — | Michigan |
| 55 | Kenneth Hart | 5 | son | — | Michigan |
| 56 | Rosemary Hart | 4 | daughter | — | Michigan |
| 57 | Jacquelyn Hart | 3 | daughter | — | Michigan |
| 58 | Max H. Hart | 1 | son | — | Michigan |
| 60 | Minnie Graham | 65 | Head | — | Minnesota |
| 61 | Cornelius Graham | 38 | son | Laborer | Minnesota |
| 62 | Mercedes S Bard | 30 | daughter | Saleslady | Minnesota |
| 63 | Cletus Graham | 24 | son | Machine Operator | Minnesota |
| 64 | Francis Graham | 27 | son | Car Loader | Minnesota |
| 65 | Emma Graham | 21 | daughter | Waitress | Michigan |
| 66 | Douglas Bard | 10 | grand son | — | Michigan |
| 67 | Shirley Bard | 8 | grand daughter | — | Michigan |
| 68 | Jerome Bard | 7 | grand son | — | Michigan |
| 69 | Chester Brushen|Brushen | 37 | Head | Handy Man | Michigan |
| 70 | Clinton Brushen|Brushen | 21 | son | Waiter | Wisconsin |
| 71 | Nina Brushen|Brushen | 18 | daughter | — | Michigan |
| 72 | Elsie Gates | 50 | Housekeeper | Proprietor | Indiana |
| 73 | Francis Gates | 16 | son | — | Michigan |
| 74 | Martin Brush | 45 | Head | Machine Operator | Michigan |
| 75 | Laura E. Brush | 38 | Wife | — | Michigan |
| 76 | Helen Brush | 17 | daughter | — | Michigan |
| 77 | Kenneth Brush | 15 | son | — | Michigan |
| 78 | Wesley Brush | 13 | son | — | Michigan |
| 79 | Lucille Brush | 11 | daughter | — | Michigan |
| 80 | Leonard Brush | 5 | son | — | 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)