MH
Mary Howard — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Calvert-County, Maryland
Our Model Tree links this Mary Howard across the 1920, 1930 and 1940 US Censuses in Calvert-County, Maryland (XGBoost, ~Confirmed) — first a spouse (b.~1876), then head of a 4-person household.
Age 64
b. ~1876
Female
Spouse
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Calvert-County, Maryland |
| Surname | Howard |
| Given Name | Mary P. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 1 |
| 1935 Residence (County) | Calvert |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Election District 1 |
| Est. Birth Year | ~1876 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Percy Howard | Head | — | 65 | ~1875 |
| Alvin Howard | Son | — | 26 | ~1914 |
| Roland Howard | Son | — | 29 | ~1911 |
| Mary Howard | Spouse | — | 64 | ~1876 |
Census Appearances
1920
Calvert, Maryland
Spouse, age 48
Calvert, Maryland · implied b. ~1872 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Howard |
| Given Name | Martha J |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Washwoman |
| Industry | Private family |
| Class of Worker | W |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Calvert, Maryland
Spouse, age 55
Calvert, Maryland · implied b. ~1875 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Howard |
| Given Name | Mary P. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 24 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Calvert-County, Maryland
Spouse, age 64
Calvert-County, Maryland · implied b. ~1876 — 4 household members
| Surname | Howard |
| Given Name | Mary P. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 1 |
| 1935 Residence (County) | Calvert |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 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 Howard across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Howard
Spouse · 1940 · age 64 · b. ~1876 · Maryland
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Calvert-County, Maryland
Open full size
1940 US Federal Census — Calvert-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01543-00057)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Amos Mason | 24 | Son | Labour | Maryland |
| 42 | Winslow Mason | 21 | Son | Labour | Maryland |
| 43 | Catherine Sewell | 17 | Daughter | — | Maryland |
| 44 | Joe Sewell | 15 | Son | Labour | Maryland |
| 45 | John Sewell | 12 | Son | — | Maryland |
| 46 | Eli Sewell | 9 | Son | — | Maryland |
| 47 | Mildred Sewell | 7 | Daughter | — | Maryland |
| 48 | Marion Sewell | 5 | Daughter | — | Maryland |
| 49 | Bertha Sewell | 19 | Daughter | — | Maryland |
| 50 | Charles A. Gray | 24 | Head | Farmer | Maryland |
| 51 | Ida V. Gray | 23 | Wife | — | Maryland |
| 52 | Donald H. Gray | 6 | Son | — | Maryland |
| 53 | Charles Jr. Gray | 3 | Son | — | Maryland |
| 54 | Iris Freeman | 26 | Head | Labour | Maryland |
| 55 | Lillian Freeman | 36 | Wife | — | Maryland |
| 56 | Benjamin Henson | 39 | Head | Labour | Maryland |
| 57 | Viola Henson | 34 | Wife | — | Maryland |
| 58 | William H. Henson | 11 | Son | — | Maryland |
| 59 | Ethelma Henson | 4 | Daughter | — | Maryland |
| 60 | Joe Rice | 53 | Head | Farmer | Maryland |
| 61 | Sara A. Rice | 50 | Wife | — | Maryland |
| 62 | Eli C. Rice | 21 | Son | Labour | Maryland |
| 63 | Fredie Rice | 28 | Head | Labour | Maryland |
| 64 | Mamie Rice | 24 | Wife | — | Maryland |
| 65 | Lodger Burkhead | None | M | — | — |
| 66 | Eugene Porter | 12 | Lodger | — | Maryland |
| 67 | Maggie Murray | 66 | Head | — | Maryland |
| 68 | Sam Murray | 35 | Nephew | Labour | Maryland |
| 69 | Nelson Sanders | 49 | Nephew | Labour | Maryland |
| 70 | Sam Parren | 77 | Head | Farmer | Maryland |
| 71 | Eliza Parren | 76 | Wife | — | Maryland |
| 72 | William W. Ross | 70 | Head | Farmer | Maryland |
| 73 | Marion Ross | 69 | Wife | — | Maryland |
| 74 | Joe Gray | 40 | Head | Labour | Maryland |
| 75 | Mary Gray | 42 | Wife | Cook | Maryland |
| 76 | Isaac Sanders | 15 | Cousin | — | Maryland |
| 77 | Percy Howard | 65 | Head | Farmer | Maryland |
| 78 | Mary P. Howard THIS PERSON | 64 | Wife | — | Maryland |
| 79 | Roland Howard | 29 | Son | Farmer | Maryland |
| 80 | Alvin Howard | 26 | Son | Farmer | 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)