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Mary Maxwell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Adams-County, Illinois
Our Model Tree links this Mary Maxwell across the 1930 and 1940 US Censuses in Adams-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1886), then head of a 9-person household.
Age 54
b. ~1886
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Adams-County, Illinois |
| Surname | Maxwell |
| Given Name | Mary H. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Quincy City |
| 1935 Residence (County) | Adams |
| Additional Details | |
| Occupation | Clerk |
| Industry | Roofing Co. |
| Class of Worker | NP |
| Hours Worked | 30 |
| Income (1939) | 0 |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Clerk |
| Township / Ward | Quincy City |
| Est. Birth Year | ~1886 |
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 |
|---|---|---|---|---|
| Marianna Maxwell | Daughter | — | 20 | ~1920 |
| Mary Maxwell | Spouse | — | 54 | ~1886 |
| Elinor Maxwell | Daughter | — | 13 | ~1927 |
| Marian Drebes | Other | — | 18 | ~1922 |
| Ruth Maxwell | Daughter | — | 15 | ~1925 |
| Casson Maxwell | Head | — | 59 | ~1881 |
| K Maxwell | Daughter | — | 16 | ~1924 |
| Kerry Maxwell | Son | — | 19 | ~1921 |
| John Maxwell | Son | — | 17 | ~1923 |
Census Appearances
1930
Adams, Illinois
Other, age 46
Adams, Illinois · implied b. ~1884 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Maxwell |
| Given Name | Mary N |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 26 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | California |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Adams-County, Illinois
Spouse, age 54
Adams-County, Illinois · implied b. ~1886 — 9 household members
| Surname | Maxwell |
| Given Name | Mary H. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Quincy City |
| 1935 Residence (County) | Adams |
| Occupation | Clerk |
| Industry | Roofing Co. |
| Class of Worker | NP |
| Hours Worked | 30 |
| Income (1939) | 0 |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Maxwell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Maxwell
Spouse · 1940 · age 54 · b. ~1886 · 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 — Adams-County, Illinois
Open full size
1940 US Federal Census — Adams-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00757-00492)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Douglas A. Aulaney | Dulaney | 29 | Head | Accountant | Illinois |
| 2 | Melba R. Aulaney | Dulaney | 29 | Wife | — | Missouri |
| 3 | Ruth C. Aulaney | Dulaney | 12 | Daughter | — | Illinois |
| 4 | William H. Klingner | 27 | Head | Civil Engineer | Colorado |
| 5 | Belle L. Klingner | 25 | Wife | — | Missouri |
| 6 | Katherine A. Klingner | 1 | Daughter | — | Illinois |
| 7 | James M. Wooldridge | 29 | Head | Purchasing Agent | Missouri |
| 8 | Nellie M. Wooldridge | 27 | Wife | — | Illinois |
| 9 | James M. Wooldridge | 4 | Son | — | Illinois |
| 10 | Zoe C. Wooldridge | 0 | Daughter | — | Illinois |
| 11 | Charles A. Myach | 29 | Head | — | Germany |
| 12 | Martha E. Myach | 25 | Wife | — | Illinois |
| 13 | Ulysses S. Dunbar | 75 | Head | — | Illinois |
| 14 | Julia B. Dunbar | 54 | Wife | — | Illinois |
| 15 | Chester D. Hess | 47 | Head | Laborer | Illinois |
| 16 | Ada M. Hess | 44 | Wife | — | Illinois |
| 17 | Dale M. Hess | 23 | Son | Coach | Illinois |
| 18 | Wendell B. Hess | 21 | Son | Laborer | Illinois |
| 19 | Robert E. Hess | 19 | Son | Machine Operator | Illinois |
| 20 | Betty L. Hess | 16 | Daughter | — | Illinois |
| 21 | Ernest E. Barrow | 36 | Head | Accountant | Iowa |
| 22 | Mildred V. Barrow | 31 | Wife | — | Colorado |
| 23 | Barbara A. Barrow | 9 | Daughter | — | Colorado |
| 24 | Dan H. Balzer | 29 | Head | Welder | Illinois |
| 25 | Rosemary F. Balzer | 26 | Wife | — | Illinois |
| 26 | Leo A. Simons | 41 | Head | Truck Operator | Illinois |
| 27 | Mildred S. Simons | 40 | Wife | — | Illinois |
| 28 | Ruth L. Simons | 10 | Daughter | — | Illinois |
| 29 | George R. Oblander | 38 | Head | Warehouseman | Illinois |
| 30 | Alice M. Oblander | 34 | Wife | — | Illinois |
| 31 | Betty A. Oblander | 15 | Daughter | — | Illinois |
| 32 | Casson K. Maxwell | 59 | Head | Manager | Illinois |
| 33 | Mary H. Maxwell THIS PERSON | 54 | Wife | Clerk | Illinois |
| 34 | Marianna C. Maxwell | 20 | Daughter | Stenographer | Illinois |
| 35 | Kerry H. Maxwell | 19 | Son | — | Illinois |
| 36 | John C. Maxwell | 17 | Son | — | Illinois |
| 37 | K. Jeanette Maxwell | 16 | Daughter | — | Illinois |
| 38 | Ruth Maxwell | 15 | Daughter | — | Illinois |
| 39 | Elinor A. Maxwell | 13 | Daughter | — | Illinois |
| 40 | Marian Drebes | 18 | Domestic | Domestic | Illinois |
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)