MH
Mary Hoffman — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Mary Hoffman across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents John & Mary — first a daughter (b.~1905), then head of a 6-person household.
Age 35
b. ~1905
Female
Daughter
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Hoffman |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1905 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Hoffman | Daughter | — | 35 | ~1905 |
| James Noctor | Head | — | 69 | ~1871 |
| Mary Hoffman | Other | — | 13 | ~1927 |
| James Hoffman | Other | — | 12 | ~1928 |
| James Noctor | Son | — | 38 | ~1902 |
| Mary Noctor | Spouse | — | 70 | ~1870 |
Census Appearances
1920
Baltimore, Maryland
Daughter, age 11
Baltimore, Maryland · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hoffman |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| 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
Baltimore, Maryland
Daughter, age 23
Baltimore, Maryland · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hoffman |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Daughter, age 35
Baltimore-City-County, Maryland · implied b. ~1905 — 6 household members
| Surname | Hoffman |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 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. Identified parents: father John Hoffman (~0.92 confidence) and mother Mary Noctor (~0.92 confidence) and father James Noctor (~0.92 confidence) and father Joseph Hoffman (~0.92 confidence) and mother Annie Hoffman (~0.92 confidence) and mother Margaret Hoffman (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Hoffman
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Mary Noctor
b. ~1870
Source mother
● Household
· direct · ~0.92
Father
James Noctor
b. ~1871
Source father
● Household
· direct · ~0.92
Father
Joseph Hoffman
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Annie Hoffman
b. ~1874
Source mother
● Household
· direct · ~0.92
Mother
Margaret Hoffman
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Hoffman
Daughter · 1940 · age 35 · b. ~1905 · Maryland
★ You are viewing this record
Sibling
James Noctor
Sibling · 1940 · age 38
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 — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01517-00183)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard Tiffett | 15 | Head | Night Watchman | Maryland |
| 2 | Lucine Tiffett | 62 | Lodger | — | Maryland |
| 3 | Bruno Schwemmer | 52 | Head | Cabinet Maker | Germany |
| 4 | Eugenie Schwemmer | 50 | Wife | — | Austria |
| 5 | Frederick H. Schwemmer | 25 | Son | Brewer | Maryland |
| 6 | Julius D. Schwemmer | 23 | Son | Helper | Maryland |
| 7 | Sylvia M. Schwemmer | 19 | Daughter | New Worker | Maryland |
| 8 | Martin Schwemmer | 17 | Son | New Worker | Maryland |
| 9 | Edwin Schwemmer | 16 | Son | — | Maryland |
| 10 | Josephine Schwemmer | 14 | Daughter | — | Maryland |
| 11 | John W. Schwemmer | 12 | Son | — | Maryland |
| 12 | James Noctor | 69 | Head | Chauffeur | Ireland |
| 13 | Mary Noctor | 70 | Wife | — | Ireland |
| 14 | James M. Noctor | 38 | Son | Ass'T Engineer | Maryland |
| 15 | Mary Hoffman THIS PERSON | 35 | Daughter | — | Maryland |
| 16 | Mary E. Hoffman | 13 | Grand dau | — | Maryland |
| 17 | James E. Hoffman | 12 | Grand son | — | Maryland |
| 18 | Regina Link | 26 | Head | Stenographer | Maryland |
| 19 | John J. Young | 49 | Head | Paint-Foreman | Maryland |
| 20 | Agnes Young | 48 | Wife | — | Maryland |
| 21 | Jas. J. Young | 28 | Son | Manager | Maryland |
| 22 | John J. Young | 12 | Son | — | Maryland |
| 23 | Mary C. Burke | 65 | Mother in law | — | Maryland |
| 24 | John D. Mcgregor | 50 | Head | Engineer | Maryland |
| 25 | Loretta Mcgregor | 49 | Wife | Chambermaid | Maryland |
| 26 | Maurice Dinan | 70 | Head | Clerk | Maryland |
| 27 | James Cromwell | 73 | Lodger | — | Maryland |
| 28 | James Gillooly | 36 | Head | Crane Operator | Maryland |
| 29 | Virginia Gillooly | 23 | Wife | — | West Virginia |
| 30 | James Jr. Gillooly | 2 | Son | — | Maryland |
| 31 | Patrick Wallace | 46 | Head | Police Officer | Irish Free State |
| 32 | Nellie Wallace | 48 | Wife | — | Maryland |
| 33 | Patrick Jr. Wallace | 18 | Son | New Worker | Maryland |
| 34 | John Wallace | 16 | Son | — | Maryland |
| 35 | Thomas Wallace | 15 | Son | — | Maryland |
| 36 | Marie Wallace | 13 | Daughter | — | Maryland |
| 37 | Francis Wallace | 12 | Son | — | Maryland |
| 38 | Nellie Wallace | 9 | Daughter | — | Maryland |
| 39 | Hubert Holland | 35 | Head | Metal Worker | Maryland |
| 40 | Esther Holland | 36 | Wife | — | Maryland |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
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)