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Mary Lawrence — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kent-County, Michigan
Our Model Tree links this Mary Lawrence across the 1930 and 1940 US Censuses in Kent-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 9-person household.
Age 10
b. ~1930
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kent-County, Michigan |
| Surname | Lawrence |
| Given Name | Mary Louise |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Plainfield |
| 1935 Residence (County) | Kent |
| Additional Details | |
| Highest Grade | No 3 |
| 1935 Residence | Same House |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Plainfield |
| 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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Barbara Lawrence | Daughter | — | 9 | ~1931 |
| Eleanor Lawrence | Daughter | — | 1 | ~1939 |
| Mary Lawrence | Daughter | — | 10 | ~1930 |
| Dorothy Lawrence | Daughter | — | 12 | ~1928 |
| Ferris Lawrence | Head | — | 40 | ~1900 |
| Harry Lawrence | Son | — | 5 | ~1935 |
| Ferris Lawrence | Son | — | 6 | ~1934 |
| Frederick Lawrence | Son | — | 14 | ~1926 |
| Pearl Lawrence | Spouse | — | 30 | ~1910 |
Census Appearances
1930
Kent, Michigan
Daughter, age 1
Kent, Michigan · implied b. ~1929 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lawrence |
| Given Name | Mary A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Kent-County, Michigan
Daughter, age 10
Kent-County, Michigan · implied b. ~1930 — 9 household members
| Surname | Lawrence |
| Given Name | Mary Louise |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Plainfield |
| 1935 Residence (County) | Kent |
| Highest Grade | No 3 |
| 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 Mary Lawrence across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Lawrence
Daughter · 1940 · age 10 · b. ~1930 · Michigan
★ You are viewing this record
Sibling
Dorothy Lawrence
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ferris Lawrence
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frederick Lawrence
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Lawrence
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Lawrence
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Lawrence
Sibling · 1940 · age 1
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 — Kent-County, Michigan
Open full size
1940 US Federal Census — Kent-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01775-00463)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Gerritt E. Parris | 27 | Head | Assembler | Michigan |
| 42 | Anna Parris | 37 | Wife | — | Michigan |
| 43 | Alma M. Parris | 7 | Daughter | — | Michigan |
| 44 | William J. Parris | 6 | Son | — | Michigan |
| 45 | Russell W. Parris | 5 | Son | — | Michigan |
| 46 | Carl Dietrich | 70 | Head | — | Germany |
| 47 | Anna Dietrich | 64 | Wife | — | Germany |
| 48 | Ernest Dietrich | 28 | Son | Farm Hand | Michigan |
| 49 | Albert Dietrich | 25 | Son | Attendant | Michigan |
| 50 | Ernest Lohrman | 54 | Head | — | Michigan |
| 51 | Hass, Clarence J. Lohrman | 24 | Grandson | Salesman | Illinois |
| 52 | Dorothy M. Lohrman | 26 | Granddaughter | — | Nebraska |
| 53 | Ferris E. Lawrence | 40 | Head | Laborer | Michigan |
| 54 | Pearl I. Lawrence | 30 | Wife | — | Michigan |
| 55 | Frederick E. Lawrence | 14 | Son | — | Michigan |
| 56 | Dorothy L. Lawrence | 12 | Daughter | — | Michigan |
| 57 | Mary Louise Lawrence THIS PERSON | 10 | Daughter | — | Michigan |
| 58 | Barbara A. Lawrence | 9 | Daughter | — | Michigan |
| 59 | Ferris J. Lawrence | 6 | Son | — | Michigan |
| 60 | Harry A. Lawrence | 5 | Son | — | Michigan |
| 61 | Eleanor M. Lawrence | 1 | Daughter | — | Michigan |
| 62 | Oliver H. Honey | 57 | Head | Packing | Michigan |
| 63 | Margaret P. Honey | 44 | Wife | — | Michigan |
| 64 | Glen D. Honey | 20 | Son | Laborer | Michigan |
| 65 | Thomas H. Honey | 18 | Son | — | Michigan |
| 66 | Oliver Jr. Honey | 14 | Son | — | Michigan |
| 67 | Gerald W. Honey | 10 | Son | — | Michigan |
| 68 | Margaret A. Honey | 6 | Daughter | — | Michigan |
| 69 | Gilbert Myers | 70 | Father-law | — | Michigan |
| 70 | Robert E. Thompson | 27 | Head | Laborer | Michigan |
| 71 | Bertha A. Thompson | 21 | Wife | — | Michigan |
| 72 | Robert A. Thompson | 3 | Son | — | Michigan |
| 73 | Verna D. Thompson | 2 | Daughter | — | Michigan |
| 74 | Gilbert T. Mouw | 33 | Head | Construction | Michigan |
| 75 | Geraldine M. Mouw | 26 | Wife | — | Michigan |
| 76 | Carl E. Mouw | 8 | Son | — | Michigan |
| 77 | Lyle E. Mouw | 6 | Son | — | Michigan |
| 78 | Carl F. Steffens | 45 | Head | Sander | Michigan |
| 79 | Florence G. Steffens | 46 | Wife | — | Michigan |
| 80 | Edwin C. Steffens | 17 | 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)