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Mary Kuhn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Mary Kuhn across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 7-person household.
Age 19
b. ~1921
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Kuhn |
| Given Name | Mary A |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | Typist |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 230 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Typist |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1921 |
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 |
|---|---|---|---|---|
| Eva Kuhn | Spouse | — | 51 | ~1889 |
| Walter Kuhn | Son | — | 23 | ~1917 |
| Elizabeth Kuhn | Daughter | — | 15 | ~1925 |
| William Kuhn | Son | — | 13 | ~1927 |
| Mary Kuhn | Daughter | — | 19 | ~1921 |
| John Kuhn | Son | — | 25 | ~1915 |
| Michael Kuhn | Head | — | 53 | ~1887 |
Census Appearances
1930
Baltimore, Maryland
Daughter, age 8
Baltimore, Maryland · implied b. ~1922 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kuhn |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| 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 19
Baltimore-City-County, Maryland · implied b. ~1921 — 7 household members
| Surname | Kuhn |
| Given Name | Mary A |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Typist |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 230 |
| Highest Grade | H-4 |
| 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 Kuhn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kuhn
Daughter · 1940 · age 19 · b. ~1921 · Maryland
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Sibling
William Kuhn
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Kuhn
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Kuhn
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Kuhn
Sibling · 1940 · age 23
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-t0627-01508-00425)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Francis Rogousky | 17 | daughter | Operator | Maryland |
| 42 | Walter Rogousky | 15 | son | — | Maryland |
| 43 | Sophia Rogousky | 14 | daughter | — | Maryland |
| 44 | Raymond Rogousky | 11 | son | — | Maryland |
| 45 | Francis Rogousky | 4 | son | — | Maryland |
| 46 | Joseph Kelly | 35 | Head | Auto Painter | Maryland |
| 47 | Evelyn Kelly | 27 | Wife | Packer | Maryland |
| 48 | William Faulkner | 57 | Head | — | Maryland |
| 49 | Lillian M Faulkner | 33 | daughter | Saleswoman | Maryland |
| 50 | Murrill D Faulkner | 17 | daughter | — | Maryland |
| 51 | Doris Davidson | 38 | daughter | Stenographer | Maryland |
| 52 | Michael Kuhn | 53 | Head | Clerk | Maryland |
| 53 | Eva Kuhn | 51 | Wife | — | Maryland |
| 54 | John G Kuhn | 25 | son | Clerk | Maryland |
| 55 | Walter E Kuhn | 23 | son | Laborer | Maryland |
| 56 | Mary A Kuhn THIS PERSON | 19 | daughter | Typist | Maryland |
| 57 | Elizabeth Kuhn | 15 | daughter | — | Maryland |
| 58 | William M Kuhn | 13 | son | — | Maryland |
| 59 | Morris Glas | 68 | Head | Presser | Russia |
| 60 | Anna Glas | 65 | Wife | Proprietor | Russia |
| 61 | Morris Klein | 70 | Head | — | Russia |
| 62 | Anna Klein | 69 | Wife | — | Russia |
| 63 | George Sweeting | 36 | Head | Chauffeur | Maryland |
| 64 | Jennie Sweeting | 29 | Wife | — | Connecticut |
| 65 | George Sweeting | 10 | son | — | Maryland |
| 66 | Anna Sweeting | 8 | daughter | — | Maryland |
| 67 | Patricia Sweeting | 1 | daughter | — | Maryland |
| 68 | Charles Butler | 42 | Head | Chauffeur | Maryland |
| 69 | Florence Butler | 42 | Wife | Domestic | Maryland |
| 70 | Charles Butler | 18 | son | Packer | Maryland |
| 71 | Calvert Butler | 15 | son | — | Maryland |
| 72 | John Butler | 14 | son | — | Maryland |
| 73 | Florence Butler | 11 | daughter | — | Maryland |
| 74 | John Sweeting | 29 | Head | Helper | Maryland |
| 75 | Anna Sweeting | 25 | Wife | Hand Sealer | Maryland |
| 76 | William Bertazon | 36 | Head | Laborer | Italy |
| 77 | Kate Bertazon | 33 | Wife | Operator | Maryland |
| 78 | Carmella Bertazon | 16 | son | Laborer | Maryland |
| 79 | Benjamin Bertazon | 15 | son | — | Maryland |
| 80 | Katherine Adams | 70 | Head | — | Maryland |
Related Census Records
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)