MA
Mary Adams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Charles-County, Maryland
Our Model Tree links this Mary Adams across the 1920, 1930 and 1940 US Censuses in Charles-County, Maryland (XGBoost, ~Confirmed) — first a spouse (b.~1887), then head of a 7-person household.
Age 53
b. ~1887
Female
Spouse
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Charles-County, Maryland |
| Surname | Adams |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | 7th Election district (Pomonkey) |
| 1935 Residence (County) | Charles |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | 7Th Election District Pomonkey |
| Est. Birth Year | ~1887 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Boyer | Daughter | — | 22 | ~1918 |
| George Adams | Head | — | 58 | ~1882 |
| George Berry | Other | — | 15 | ~1925 |
| Ray Boyer | Other | — | 1 | ~1939 |
| Ralph Boyer | Other | — | 23 | ~1917 |
| Edwin Adams | Son | — | 26 | ~1914 |
| Mary Adams | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Charles, Maryland
Spouse, age 34
Charles, Maryland · implied b. ~1886 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Charles, Maryland
Spouse, age 44
Charles, Maryland · implied b. ~1886 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 27 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Charles-County, Maryland
Spouse, age 53
Charles-County, Maryland · implied b. ~1887 — 7 household members
| Surname | Adams |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | 7th Election district (Pomonkey) |
| 1935 Residence (County) | Charles |
| 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 Adams 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 Adams
Spouse · 1940 · age 53 · b. ~1887 · Maryland
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Charles-County, Maryland
Open full size
1940 US Federal Census — Charles-County, Maryland
Page Contents
29 people indexed on this census page (nara:1940:m-t0627-01546-00389)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Aubrey Lucas | 12 | Boarder | — | Maryland |
| 2 | Dorothy Ford | 17 | Helper (in home) | Maid | Maryland |
| 3 | George B. D. Adams | 75 | Head | Farmer | Maryland |
| 4 | George Adams | 37 | Son | Laborer | Maryland |
| 5 | George W. H. Adams | 58 | Head | Farmer | Maryland |
| 6 | Mary E. Adams THIS PERSON | 53 | Wife | — | Maryland |
| 7 | Edwin Adams | 26 | Son | Salesman | Maryland |
| 8 | Ralph Boyer | 23 | Son-in-law | Male Nurse | Penna |
| 9 | Mary Boyer | 22 | Daughter | — | Maryland |
| 10 | Ray Boyer | 1 | Grandson | — | Penna |
| 11 | George Berry | 15 | Nephew | — | Maryland |
| 12 | Ernest Duckett | 33 | Head | Laborer | Maryland |
| 13 | Ernest Jr. Duckett | 4 | Son | — | Maryland |
| 14 | Elsie R. Williams | 13 | Daughter | — | Maryland |
| 15 | Mary E. Williams | 10 | Daughter | — | Maryland |
| 16 | John W. Williams | 7 | Nephew | — | Maryland |
| 17 | Richard R. Stewart | 45 | Head | Farmer | Maryland |
| 18 | Laura Stewart | 40 | Wife | — | Maryland |
| 19 | Milton W. Adams | 36 | Head | Farmer | Maryland |
| 20 | Sadie M. Adams | 26 | Wife | — | Maryland |
| 21 | William Adams | 7 | Son | — | Maryland |
| 22 | John A. D. Butler | 52 | Head | Farmer | Maryland |
| 23 | Grace A. Butler | 45 | Wife | — | Maryland |
| 24 | Thelma Butler | 18 | Daughter | — | Maryland |
| 25 | Mary Ellen Butler | 15 | Daughter | Maid | Maryland |
| 26 | Paul E. Butler | 12 | Son | — | Maryland |
| 27 | Mary E. Butler | 8 | Daughter | — | Maryland |
| 28 | Mildred V. Butler | 4 | Daughter | — | Maryland |
| 29 | Louise Teresa Briscoe | 32 | Daughter | Maid | 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)