MH
Mary Hoffman — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washington-County, Maryland
Our Model Tree links this Mary Hoffman across the 1920, 1930 and 1940 US Censuses in Washington-County, Maryland (XGBoost, ~Confirmed) — first a spouse (b.~1894), then head of a 5-person household.
Age 46
b. ~1894
Female
Spouse
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Maryland |
| Surname | Hoffman |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 2, Williamsport |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Occupation | Housekeeper |
| Industry | Own family |
| Class of Worker | NP |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Housekeeper |
| Township / Ward | Election District 2 Williamsport |
| Est. Birth Year | ~1894 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Madaline Hoffman | Daughter | — | 12 | ~1928 |
| Stanley Hoffman | Head | — | 50 | ~1890 |
| Charles Mcpherson | Other | — | 71 | ~1869 |
| Roger Hoffman | Son | — | 22 | ~1918 |
| Mary Hoffman | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Washington, Maryland
Spouse, age 25
Washington, Maryland · implied b. ~1895 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hoffman |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| 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
Washington, Maryland
Spouse, age 35
Washington, Maryland · implied b. ~1895 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hoffman |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 19 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Washington-County, Maryland
Spouse, age 46
Washington-County, Maryland · implied b. ~1894 — 5 household members
| Surname | Hoffman |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 2, Williamsport |
| 1935 Residence (County) | Washington |
| Occupation | Housekeeper |
| Industry | Own family |
| Class of Worker | NP |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| 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 Hoffman 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 Hoffman
Spouse · 1940 · age 46 · b. ~1894 · 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 — Washington-County, Maryland
Open full size
1940 US Federal Census — Washington-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01562-00582)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Pery C. Breen | 55 | Head | Painter | Maryland |
| 2 | Cora M. Breen | 43 | Wife | Housekeeper | Maryland |
| 3 | Harold P. Breen | 28 | Son | Teacher | Maryland |
| 4 | Russell L. Breen | 26 | Son | Laborer | Maryland |
| 5 | Ima V. Breen | 17 | Daughter | — | Maryland |
| 6 | Paul C. Breen | 13 | Son | — | Maryland |
| 7 | Daniel D. Ridenour | 62 | Head | — | Maryland |
| 8 | Emma K. Ridenour | 57 | Wife | Housekeeper | Maryland |
| 9 | Ray R. Ridenour | 22 | Son | Laborer | Maryland |
| 10 | S. Jane Ridenour | 19 | Daughter | Housekeeper | Maryland |
| 11 | Thornton T. Duley | 58 | Head | Laborer | Maryland |
| 12 | Viola E. Duley | 59 | Wife | Housekeeper | Maryland |
| 13 | Louis T. Duley | 19 | Son | Laborer | Maryland |
| 14 | Jacob Funk | 47 | Head | Laborer | Maryland |
| 15 | Helen G. Funk | 29 | Wife | Housekeeper | Maryland |
| 16 | Donald L. Funk | 5 | Son | — | Maryland |
| 17 | Harry L. Funk | 2 | Son | — | Maryland |
| 18 | Russell L. Moats | 33 | Head | Salesman | Maryland |
| 19 | Agnes L. Moats | 31 | Wife | Housekeeper | Maryland |
| 20 | Donald L. Moats | 7 | Son | — | Maryland |
| 21 | Deloris L. Moats | 4 | Daughter | — | Maryland |
| 22 | Gerald L. Moats | 1 | Son | — | Maryland |
| 23 | Hubert E. Faulder | 45 | Head | Laborer | Maryland |
| 24 | Aldie S. Faulder | 39 | Wife | Housekeeper | Maryland |
| 25 | Edna D. Ridenour | 34 | Head | Housekeeper | Maryland |
| 26 | Sam V. Stouffer | 52 | Head | Laborer | Maryland |
| 27 | Mary S. Stouffer | 48 | Wife | Housekeeper | Maryland |
| 28 | Betty L. Stouffer | 9 | Daughter | — | Maryland |
| 29 | Stanley E. Hoffman | 50 | Head | Teacher | Maryland |
| 30 | Mary E. Hoffman THIS PERSON | 46 | Wife | Housekeeper | Maryland |
| 31 | Roger E. Hoffman | 22 | Son | Laborer | Maryland |
| 32 | Madaline M. Hoffman | 12 | Daughter | — | Maryland |
| 33 | Charles F. Mcpherson | 71 | Father-in-law | — | Maryland |
| 34 | Webster F. Detrow | 37 | Head | Laborer | Maryland |
| 35 | Kathleen S. Detrow | 31 | Wife | Housekeeper | Maryland |
| 36 | George L. Detrow | 13 | Son | — | Maryland |
| 37 | Janice L. Detrow | 11 | Daughter | — | Maryland |
| 38 | Arlene F. Detrow | 8 | Daughter | — | Maryland |
| 39 | Alva J. Detrow | 3 | Daughter | — | Maryland |
| 40 | Floid M. Detrow | 0 | Daughter | — | 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)