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Mary Monroe — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Douglas-County, Kansas
Our Model Tree links this Mary Monroe across the 1930 and 1940 US Censuses in Douglas-County, Kansas (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 12-person household.
Age 10
b. ~1930
Female
Daughter
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Douglas-County, Kansas |
| Surname | Monroe |
| Given Name | Mary H |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Lawrence City |
| 1935 Residence (County) | Douglas |
| Additional Details | |
| Highest Grade | 2 |
| 1935 Residence | Same House |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Township / Ward | Lawrence City |
| 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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Chicks | Other | — | 89 | ~1851 |
| Raymond Monroe | Son | — | 12 | ~1928 |
| Leonard Monroe | Son | — | 8 | ~1932 |
| Sharon Howard | Daughter | — | 1 | ~1939 |
| Lavetta Bronson | Daughter | — | 25 | ~1915 |
| Lizzie Monroe | Spouse | — | 51 | ~1889 |
| Waldo Monroe | Son | — | 16 | ~1924 |
| Waldo Monroe | Head | — | 46 | ~1894 |
| Thaddeus Colyer | Other | — | 65 | ~1875 |
| Edna Monroe | Daughter | — | 15 | ~1925 |
| Mary Monroe | Daughter | — | 10 | ~1930 |
| Doris Howard | Daughter | — | 3 | ~1937 |
Census Appearances
1930
Douglas, Kansas
Daughter, age
Douglas, Kansas · implied b. ~1930 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Monroe |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Douglas-County, Kansas
Daughter, age 10
Douglas-County, Kansas · implied b. ~1930 — 12 household members
| Surname | Monroe |
| Given Name | Mary H |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Lawrence City |
| 1935 Residence (County) | Douglas |
| Highest Grade | 2 |
| 1935 Residence | Same House |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Monroe across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Monroe
Daughter · 1940 · age 10 · b. ~1930 · Kansas
★ You are viewing this record
Sibling
Sharon Howard
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Monroe
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lavetta Bronson
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leonard Monroe
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Waldo Monroe
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Howard
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Monroe
Sibling · 1940 · age 12
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 — Douglas-County, Kansas
Open full size
1940 US Federal Census — Douglas-County, Kansas
Page Contents
23 people indexed on this census page (nara:1940:m-t0627-01229-00544)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Waldo Monroe | 46 | Head | Truck Driver | Kansas |
| 2 | Lizzie Monroe | 51 | Wife | — | Kansas |
| 3 | Lavetta Bronson | 25 | Daughter | Servant | Kansas |
| 4 | Waldo Jr Monroe | 16 | Son | — | Kansas |
| 5 | Edna Monroe | 15 | Daughter | — | Kansas |
| 6 | Raymond Monroe | 12 | Son | — | Kansas |
| 7 | Mary H Monroe THIS PERSON | 10 | Daughter | — | Kansas |
| 8 | Leonard Monroe | 8 | Son | — | Kansas |
| 9 | Thaddeus D Colyer | 65 | Father | Small Machine Repair | Kansas |
| 10 | Mary E Chicks | 89 | Grand Mother | — | Missouri |
| 11 | Doris Ann Howard | 3 | Daughter | — | Kansas |
| 12 | Sharon Howard | 1 | Daughter | — | Kansas |
| 13 | Rose Francis | 62 | Head | Servant | Missouri |
| 14 | Owen Edgar | 34 | Head | Salesman | Kansas |
| 15 | Alice Edgar | 31 | Wife | Operator | Kansas |
| 16 | Frank E Gadding | 46 | Head | Salesman | Kansas |
| 17 | Leota C Gadding | 39 | Wife | — | Kansas |
| 18 | George A Gadding | 19 | Son | Driver Helper | Kansas |
| 19 | Frank E Jr Gadding | 18 | Son | Counter Man | Kansas |
| 20 | R. Lorraine Gadding | 8 | Daughter | — | Kansas |
| 21 | Calvin H Richardson | 48 | Head | Proprietor | Kansas |
| 22 | Clara Richardson | 50 | Wife | — | Kansas |
| 23 | Ronald C Vetter | 25 | Son | — | Kansas |
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)