MP
Mary Powell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Howard-County, Maryland
Our Model Tree links this Mary Powell across the 1930 and 1940 US Censuses in Howard-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 11-person household.
Age 12
b. ~1928
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Howard-County, Maryland |
| Surname | Powell |
| Given Name | Mary V. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election Dist 4 |
| 1935 Residence (County) | Howard |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Election Dist 4 |
| Est. Birth Year | ~1928 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Powell | Daughter | — | 12 | ~1928 |
| Louisa Powell | Daughter | — | 7 | ~1933 |
| Edward Powell | Head | — | 37 | ~1903 |
| Edward Powell | Son | — | 5 | ~1935 |
| William Powell | Son | — | 10 | ~1930 |
| Charles Powell | Son | — | 8 | ~1932 |
| Richard Powell | Son | — | 1 | ~1939 |
| Robert Powell | Son | — | 2 | ~1938 |
| William Young | Spouse | — | 64 | ~1876 |
| Margaret Young | Spouse | — | 63 | ~1877 |
| Carrie Powell | Spouse | — | 37 | ~1903 |
Census Appearances
1930
Howard, Maryland
Daughter, age 2
Howard, Maryland · implied b. ~1928 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Powell |
| Given Name | Mary N. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laundress |
| Industry | Private family |
| Class of Worker | W |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Howard-County, Maryland
Daughter, age 12
Howard-County, Maryland · implied b. ~1928 — 11 household members
| Surname | Powell |
| Given Name | Mary V. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election Dist 4 |
| 1935 Residence (County) | Howard |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Powell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Powell
Daughter · 1940 · age 12 · b. ~1928 · Maryland
★ You are viewing this record
Sibling
Louisa Powell
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Powell
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Powell
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Powell
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Powell
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Powell
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 — Howard-County, Maryland
Open full size
1940 US Federal Census — Howard-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01552-00287)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Giles W. Mckenney | 68 | Head | Minister | Maryland |
| 2 | Giles W. Mckenney | 26 | Son | No | Maryland |
| 3 | Harold J. Mckenney | 23 | Son | No | Maryland |
| 4 | Henry S. Duwall | 57 | Head | Farmer | Maryland |
| 5 | Rachel C. Duwall | 50 | Wife | — | Maryland |
| 6 | Elizabeth Duwall | 17 | Daughter | — | Maryland |
| 7 | Sarah M. Snyder | 66 | Head | — | Maryland |
| 8 | Charles H. Hardin | 42 | Head | Farmer | Maryland |
| 9 | Eliza R. Hardin | 36 | Wife | — | Maryland |
| 10 | Charles Hardin | 14 | Son | — | Maryland |
| 11 | Mary L. Howard | 16 | Servant | Farm Labor | Maryland |
| 12 | S. V. Musgrove | 80 | Head | Farmer | Maryland |
| 13 | Herbert Musgrove | 48 | Son | — | Maryland |
| 14 | Alice Musgrove | 46 | Wife | — | Maryland |
| 15 | Herbert, Jr. Musgrove | 19 | Grandson | — | Maryland |
| 16 | Mary Hallmark | 21 | Servant | — | Maryland |
| 17 | Mathew Dutton | 29 | Head | Servant | Maryland |
| 18 | Harold Dutton | 35 | Husband | Farm Labor | Maryland |
| 19 | Harold Dutton | 10 | Son | — | Maryland |
| 20 | Pauline Dutton | 9 | Daughter | — | Maryland |
| 21 | Mary H. Dutton | 8 | Daughter | — | Maryland |
| 22 | George S. Dutton | 5 | Son | — | Maryland |
| 23 | Edward Powell | 37 | Head | Farm Labor | Maryland |
| 24 | Carrie Powell | 37 | Wife | — | Maryland |
| 25 | Mary V. Powell THIS PERSON | 12 | Daughter | — | Maryland |
| 26 | William E. Powell | 10 | Son | — | Maryland |
| 27 | Charles H. Powell | 8 | Son | — | Maryland |
| 28 | Louisa Powell | 7 | Daughter | — | Maryland |
| 29 | Edward Powell | 5 | Son | — | Maryland |
| 30 | Robert Powell | 2 | Son | — | Maryland |
| 31 | Richard Powell | 1 | Son | — | Maryland |
| 32 | William Young | 64 | Husband | Farm Labor | Maryland |
| 33 | Margaret Young | 63 | Wife | — | Maryland |
| 34 | Morris Stier | 66 | Head | Farmer | Maryland |
| 35 | Ethel B. Stier | 54 | Wife | — | Penn. |
| 36 | Howard Stier | 29 | Son | Teacher | Delaware |
| 37 | Ethel G. Stier | 26 | Daughter | Nurse | Delaware |
| 38 | Edward Johnson | 49 | Head | Farm Labor | Virginia |
| 39 | Catherine Johnson | 21 | Wife | — | Virginia |
| 40 | Gilbert Fisher | 51 | Head | Farm Labor | Maryland |
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)