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Mary Lawson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Rock-Island-County, Illinois
Our Model Tree links this Mary Lawson across the 1920, 1930 and 1940 US Censuses in Rock-Island-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1879), then head of a 4-person household.
Age 61
b. ~1879
Female
Spouse
Born: Germany
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Rock-Island-County, Illinois |
| Surname | Lawson |
| Given Name | Mary M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | Rock Island City |
| 1935 Residence (County) | Rock Island |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
| Township / Ward | Rock Island City |
| Est. Birth Year | ~1879 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Lawson | Daughter | — | 25 | ~1915 |
| John Lawson | Head | — | 58 | ~1882 |
| John Lawson | Son | — | 29 | ~1911 |
| Mary Lawson | Spouse | — | 61 | ~1879 |
Census Appearances
1920
Rock Island, …
Spouse, age 40
Rock Island, Illinois · implied b. ~1880 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lawson |
| Given Name | Mary M |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Germany |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth Country | Germany |
| Year of Naturalization | 1888 |
| Birthplace (normalized) | germany |
1930
Rock Island, …
Spouse, age 51
Rock Island, Illinois · implied b. ~1879 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lawson |
| Given Name | Mary M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Germany |
| Year of Immigration | 1883 |
| Age at First Marriage | 24 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
1940
Rock-Island-County, Illinois
Spouse, age 61
Rock-Island-County, Illinois · implied b. ~1879 — 4 household members
| Surname | Lawson |
| Given Name | Mary M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | Rock Island City |
| 1935 Residence (County) | Rock Island |
| Naturalization Status | Naturalized |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
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 Lawson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Lawson
Spouse · 1940 · age 61 · b. ~1879 · Illinois
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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 — Rock-Island-County, Illinois
Open full size
1940 US Federal Census — Rock-Island-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00876-00574)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Armond Blanchette | 26 | Head | Operator | Illinois |
| 2 | Lucille Blanchette | 26 | Wife | Telephone Operator | Illinois |
| 3 | Chas S. Mcdaniel | 68 | Head | Cleaner | Illinois |
| 4 | Gertrude Mcdaniel | 65 | Wife | — | Illinois |
| 5 | Joseph D. Gray | 39 | Head | Press Feeder | Tennessee |
| 6 | Emma F. Gray | 46 | Wife | — | Pennsylvania |
| 7 | Arthur C. Sulong | 20 | Son | Truck Driver | Illinois |
| 8 | Robert D. Sulong | 15 | Son | — | Illinois |
| 9 | Frank O. Sulong | 23 | Son | Footwear Salesman | Illinois |
| 10 | Maxine E. Sulong | 23 | Daughter | Assembler | Iowa |
| 11 | Annie S. Gray | 56 | Mother | — | Tennessee |
| 12 | Walter C. Sanderson | 64 | Head | Machine Operator | Illinois |
| 13 | Cora M. Sanderson | 60 | Wife | — | Illinois |
| 14 | Emma E. Sanderson | 69 | Sister | — | Illinois |
| 15 | Maude E. Graham | 54 | Head | Grade Teach. | Illinois |
| 16 | Arthur W. Dunlap | 56 | Cousin | Caretaker | Kansas |
| 17 | Theresa Cavanaugh | 75 | Head | — | Illinois |
| 18 | Thomas J. Cavanaugh | 45 | Son | Asst. Super. | Illinois |
| 19 | George Paaske | 33 | Head | Trucker | Illinois |
| 20 | John P. Lawson | 58 | Head | Machine Operator | England |
| 21 | Mary M. Lawson THIS PERSON | 61 | Wife | — | Germany |
| 22 | John M. Lawson | 29 | Son | Assembler | Illinois |
| 23 | Dorothy E. Lawson | 25 | Daughter | File Clerk | Illinois |
| 24 | John Baltzer | 65 | Head | Carpenter | Germany |
| 25 | Charles E. Millett | 41 | Head | Tool Maker | Iowa |
| 26 | Elizabeth Millett | 37 | Wife | — | Illinois |
| 27 | Marian E. Millett | 17 | Daughter | — | Illinois |
| 28 | William C. Millett | 15 | Son | — | Illinois |
| 29 | Laura M. Millett | 10 | Daughter | — | Illinois |
| 30 | Allen W. Pratt | 59 | Head | Elevator Operator | Illinois |
| 31 | Gertrude A. Pratt | 59 | Wife | — | Illinois |
| 32 | Harold E. Holtzer | 30 | Head | Machinist | Illinois |
| 33 | Ann L. Holtzer | 27 | Wife | — | Illinois |
| 34 | Joanne Holtzer | 1 | Daughter | — | Illinois |
| 35 | Julie J. Cornelia | 25 | Brother-in-law | Typist | Illinois |
| 36 | Sophia Willhouse | 68 | Head | — | Germany |
| 37 | Elizabeth Baraka | 54 | Daughter | — | Illinois |
| 38 | Frederick Baraka | 22 | Grandson | Grinder | Illinois |
| 39 | Thomas W. Wardlow | 40 | Head | Cleaner | Kentucky |
| 40 | Mildred M. Wardlow | 35 | Wife | — | Illinois |
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)