MF
Mary Fleming — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Charles-County, Maryland
Our Model Tree links this Mary Fleming across the 1920, 1930 and 1940 US Censuses in Charles-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1902), then head of a 4-person household.
Age 38
b. ~1902
Female
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Charles-County, Maryland |
| Surname | Fleming |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Mechanicsville |
| 1935 Residence (County) | Charles |
| Additional Details | |
| Occupation | Laundry work |
| Industry | Private home |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 100 |
| Highest Grade | No 4 |
| 1935 Residence | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Laundry Work |
| Township / Ward | Marbury |
| Est. Birth Year | ~1902 |
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 |
|---|---|---|---|---|
| Ella Fleming | Daughter | — | 12 | ~1928 |
| Beatrice Fleming | Daughter | — | 15 | ~1925 |
| Mary Fleming | Head | — | 38 | ~1902 |
| Francis Fleming | Son | — | 14 | ~1926 |
Census Appearances
1920
Charles, Maryland
Spouse, age 20
Charles, Maryland · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fleming |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 20 |
| 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 30
Charles, Maryland · implied b. ~1900 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flemming |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 18 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laundress |
| Industry | private family |
| Class of Worker | 8596 W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Charles-County, Maryland
Head, age 38
Charles-County, Maryland · implied b. ~1902 — 4 household members
| Surname | Fleming |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Mechanicsville |
| 1935 Residence (County) | Charles |
| Occupation | Laundry work |
| Industry | Private home |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 100 |
| Highest Grade | No 4 |
| 1935 Residence | Maryland |
| 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 Fleming 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 Fleming
Head · 1940 · age 38 · b. ~1902 · 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
40 people indexed on this census page (nara:1940:m-t0627-01546-00498)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Benjamin Proctor | 48 | Brother | Laborer | Maryland |
| 42 | Edna Coby | 15 | Nephew | — | Maryland |
| 43 | Mary Fleming THIS PERSON | 38 | Head | Laundry Work | Maryland |
| 44 | Beatrice Fleming | 15 | Daughter | — | Maryland |
| 45 | Francis Fleming | 14 | Son | — | Maryland |
| 46 | Ella Louise Fleming | 12 | Daughter | — | Maryland |
| 47 | Joseph Wright | 56 | Head | Attendant | Maryland |
| 48 | Lizzie Wright | 40 | Wife | — | Maryland |
| 49 | Walter Wright | 21 | Son | Truck Driver | Maryland |
| 50 | Wesley Wright | 17 | Son | — | Maryland |
| 51 | Eugene Wright | 13 | Son | — | Maryland |
| 52 | Hazel Wright | 12 | Daughter | — | Maryland |
| 53 | Mary Wright | 9 | Daughter | — | Maryland |
| 54 | Lodge Wright | 7 | Son | — | Maryland |
| 55 | Gladys Wright | 3 | Daughter | — | Maryland |
| 56 | James Wright | 1 | Son | — | Maryland |
| 57 | Earl Maddox | 48 | Head | Chauffeur | Maryland |
| 58 | Catherine Maddox | 33 | Wife | — | Maryland |
| 59 | James Maddox | 18 | Son | — | Washington D.C. |
| 60 | Richard Simmons | 46 | Head | Attendant | Maryland |
| 61 | Helen R. Simmons | 43 | Wife | — | Maryland |
| 62 | James Simmons | 6 | Adopted son | — | Maryland |
| 63 | Richard B. Davis | 52 | Head | Pipe Fitter | Maryland |
| 64 | Edna Davis | 40 | Wife | — | Maryland |
| 65 | Kenneth Davis | 22 | Son | — | Maryland |
| 66 | Calvin Davis | 15 | Son | — | Maryland |
| 67 | James Hart | 48 | Head | — | Maryland |
| 68 | Lloyd Hart | 20 | Son | Farm Labor | Maryland |
| 69 | Gertrude Hart | 18 | Daughter | — | Maryland |
| 70 | Madeline Hart | 13 | Daughter | — | Maryland |
| 71 | Gilbert Hart | 14 | Son | — | Maryland |
| 72 | Edna Hart | 12 | Daughter | — | Maryland |
| 73 | James Hart | 2 | Son | — | Maryland |
| 74 | Deloris Hart | 0 | Daughter | — | Maryland |
| 75 | Francis Brown | 3 | Grandson | — | Maryland |
| 76 | Sylvester Simmons | 52 | Head | — | Maryland |
| 77 | Lottie Simmons | 60 | Wife | — | Maryland |
| 78 | Grover Simmons | 30 | Son | Road Worker | Maryland |
| 79 | Thomas Simmons | 23 | Son | Laborer | Maryland |
| 80 | Millard Simmons | 23 | Son | — | 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)