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Mary Mcclain — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wyandotte-County, Kansas
Our Model Tree links this Mary Mcclain across the 1930 and 1940 US Censuses in Wyandotte-County, Kansas (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 6-person household.
Age 13
b. ~1927
Female
Daughter
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wyandotte-County, Kansas |
| Surname | McClain |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Kansas City |
| 1935 Residence (County) | Wyandotte |
| Additional Details | |
| Highest Grade | Gr 7 |
| 1935 Residence | Same House |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Township / Ward | Kansas City |
| Est. Birth Year | ~1927 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Mcclain | Daughter | — | 13 | ~1927 |
| Harry Mcclain | Son | — | 14 | ~1926 |
| Richard Mcclain | Son | — | 10 | ~1930 |
| Rever Mcclain | Head | — | 41 | ~1899 |
| Thomas Mcclain | Son | — | 8 | ~1932 |
| Ella Mcclain | Spouse | — | 38 | ~1902 |
Census Appearances
1930
Wyandotte, Kansas
Daughter, age 3
Wyandotte, Kansas · implied b. ~1927 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McClain |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Oklahoma |
| Can Read/Write | No |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Wyandotte-County, Kansas
Daughter, age 13
Wyandotte-County, Kansas · implied b. ~1927 — 6 household members
| Surname | McClain |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Kansas City |
| 1935 Residence (County) | Wyandotte |
| Highest Grade | Gr 7 |
| 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 Mcclain across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mcclain
Daughter · 1940 · age 13 · b. ~1927 · Kansas
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Sibling
Richard Mcclain
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Mcclain
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Mcclain
Sibling · 1940 · age 14
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 — Wyandotte-County, Kansas
Open full size
1940 US Federal Census — Wyandotte-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01267-00266)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jesse Mae Sharp | 45 | Head | Braille Transcriber | Kansas |
| 2 | James Rozell Sharp | 18 | Son | — | Kansas |
| 3 | Walter C Gordon | 51 | Head | Boiler Washer | Georgia |
| 4 | George W Shanks | 63 | Head | Janitor | Virginia |
| 5 | Estella Scotty | 58 | Lodger | Cook | Texas |
| 6 | Leila Miller | 45 | Head | Teacher | Missouri |
| 7 | Frank Plummer | 30 | Head | Rail Yard Mail Clerk | Washington |
| 8 | Maude Plummer | 27 | Wife | — | Missouri |
| 9 | Herman Plummer | 24 | Son | — | Kansas |
| 10 | Lola Plummer | 16 | Daughter | — | Kansas |
| 11 | Janie Lois Plummer | 24 | Daughter | — | Kansas |
| 12 | Lolita Plummer | 1 | Daughter | — | Missouri |
| 13 | Vondora Foster | 32 | Head | Laborer | Kansas |
| 14 | Christopher Harper | 49 | Head | Preacher | Arkansas |
| 15 | Emma Harper | 49 | Wife | — | Louisiana |
| 16 | Robert Lee | 58 | Head | Laborer | Mississippi |
| 17 | Pearl Lee | 42 | Wife | Servant | Arkansas |
| 18 | Beatrice Tillman | 37 | Lodger | Laundress | Texas |
| 19 | Octavia Simington | 34 | Lodger | Servant | Louisiana |
| 20 | Anthony Davis | 64 | Head | Religious Worker | Texas |
| 21 | Amanda Davis | 61 | Wife | — | Arkansas |
| 22 | Ed G Nickens | 70 | Lodger | Painter | Ohio |
| 23 | Ralph Isaac | 36 | Lodger | Musician | Texas |
| 24 | Gus Johnson | 48 | Head | Oiler | Texas |
| 25 | Beulah Johnson | 39 | Wife | — | Texas |
| 26 | James Spaulding | 23 | Head | Clerk | Missouri |
| 27 | Cynthia Spaulding | 66 | Wife | — | Kansas |
| 28 | William Lindsey | 63 | Head | Tractor Eater | Kentucky |
| 29 | Emma Lindsey | 40 | Wife | — | Mississippi |
| 30 | Opal Lindsey | 21 | Daughter | Federal Employee | Oklahoma |
| 31 | Adeline Jordan | 40 | Head | School Teacher | Georgia |
| 32 | Mary Allmond | 67 | Aunt | — | Georgia |
| 33 | William Allen | 40 | Head | Laborer | Kansas |
| 34 | Bernice Allen | 16 | Daughter | — | Kansas |
| 35 | Rever Mcclain | 41 | Head | Houseman | Mississippi |
| 36 | Ella Mcclain | 38 | Wife | Servant | Oklahoma |
| 37 | Harry Mcclain | 14 | Son | — | Kansas |
| 38 | Mary L Mcclain THIS PERSON | 13 | Daughter | — | Kansas |
| 39 | Richard Mcclain | 10 | Son | — | Kansas |
| 40 | Thomas Mcclain | 8 | 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)