MC
Mary Crosby — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Westmoreland-County, Virginia
Our Model Tree links this Mary Crosby across the 1930 and 1940 US Censuses in Westmoreland-County, Virginia (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 9-person household.
Age 16
b. ~1924
Female
Daughter
Born: Virginia
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Westmoreland-County, Virginia |
| Surname | Crosby |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Cople District |
| 1935 Residence (County) | Westmoreland |
| Additional Details | |
| Highest Grade | 7 |
| 1935 Residence | Same House |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Township / Ward | Cople District |
| Est. Birth Year | ~1924 |
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 |
|---|---|---|---|---|
| Thomas Crosby | Son | — | 8 | ~1932 |
| Audrey Crosby | Daughter | — | 4 | ~1936 |
| Emma Crosby | Spouse | — | 39 | ~1901 |
| John Crosby | Son | — | 10 | ~1930 |
| Clarence Crosby | Head | — | 38 | ~1902 |
| Clarence Crosby | Son | — | 6 | ~1934 |
| Audra Crosby | Daughter | — | 15 | ~1925 |
| Mary Crosby | Daughter | — | 16 | ~1924 |
| Helen Crosby | Daughter | — | 12 | ~1928 |
Census Appearances
1930
King William, …
Other, age 6
King William, Virginia · implied b. ~1924 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Crosby |
| Given Name | Mary E. |
| Relationship to Head | Adopted |
| Sex | F |
| Color / Race | Black |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
Westmoreland-County, Virginia
Daughter, age 16
Westmoreland-County, Virginia · implied b. ~1924 — 9 household members
| Surname | Crosby |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Cople District |
| 1935 Residence (County) | Westmoreland |
| Highest Grade | 7 |
| 1935 Residence | Same House |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
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 Crosby across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Crosby
Daughter · 1940 · age 16 · b. ~1924 · Virginia
★ You are viewing this record
Sibling
Audrey Crosby
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Audra Crosby
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Crosby
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Crosby
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clarence Crosby
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Crosby
Sibling · 1940 · age 10
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 — Westmoreland-County, Virginia
Open full size
1940 US Federal Census — Westmoreland-County, Virginia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04301-00051)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Evelyn Mumson | 26 | Daughter | — | Virginia |
| 2 | Richard L. Mumson | 37 | Son-in-law | Farmer | Virginia |
| 3 | Hannah V. Mumson | 10 | Granddaughter | — | Virginia |
| 4 | Mary Mumson | 8 | Granddaughter | — | Virginia |
| 5 | Alice E. Mumson | 5 | Granddaughter | — | Virginia |
| 6 | Emily A. Mumson | 4 | Granddaughter | — | Virginia |
| 7 | Thomas R. Lee | 22 | Head | Laborer | Virginia |
| 8 | Martha J. Lee | 22 | Wife | Cook | Virginia |
| 9 | Carrie Lee | 46 | Mother | — | Virginia |
| 10 | Robt. Adkins | 30 | Lodger | — | Virginia |
| 11 | Fred Fairfax | 72 | Head | — | Tennessee |
| 12 | Amanda W. Fairfax | 58 | Wife | — | Virginia |
| 13 | Amanda G. Fairfax | 32 | Daughter | — | Virginia |
| 14 | Whealon E. Fairfax | 26 | Son | Farmer | Virginia |
| 15 | Fred G. Fairfax | 23 | Son | Farmer | Virginia |
| 16 | Catherine R. Fairfax | 20 | Daughter | — | Virginia |
| 17 | Nancy P. Carey | 59 | Head | — | Maryland |
| 18 | Harry C. Pennington | 50 | Brother | Merchant | Maryland |
| 19 | Hope Heitman | 66 | Lodger | Poultry Raiser | Virginia |
| 20 | Edw. M. Dining | 63 | Head | Supt. Masonry | Maryland |
| 21 | Sarah C. Dining | 42 | Wife | — | Virginia |
| 22 | George Green | 62 | Head | Laborer | Virginia |
| 23 | Alberta M. Johnson | 46 | Head | School Teacher | Virginia |
| 24 | Jewel L. Taylor | 31 | Head | Principle | Virginia |
| 25 | Ella P. Taylor | 31 | Wife | — | Virginia |
| 26 | Waverly E. Taylor | 10 | Son | — | Virginia |
| 27 | Charles W. Taylor | 8 | Son | — | Virginia |
| 28 | Joyce C. Taylor | 6 | Daughter | — | Virginia |
| 29 | Jewel B. Taylor | 4 | Daughter | — | Virginia |
| 30 | Phyllis O. Taylor | 2 | Daughter | — | Virginia |
| 31 | John H. Taylor | 1 | Son | — | Virginia |
| 32 | Clarence W. Crosby | 38 | Head | Laborer | Virginia |
| 33 | Emma L. Crosby | 39 | Wife | — | Virginia |
| 34 | Mary A. Crosby THIS PERSON | 16 | Daughter | — | Virginia |
| 35 | Audra V. Crosby | 15 | Daughter | — | Virginia |
| 36 | Helen E. Crosby | 12 | Daughter | — | Virginia |
| 37 | John W. Crosby | 10 | Son | — | Virginia |
| 38 | Thomas W. Crosby | 8 | Son | — | Virginia |
| 39 | Clarence A. Crosby | 6 | Son | — | Virginia |
| 40 | Audrey L. Crosby | 4 | Daughter | — | Virginia |
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)