MK
Mary Kuhn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Prince-George'S-County, Maryland
Our Model Tree links this Mary Kuhn across the 1930 and 1940 US Censuses in Prince-George'S-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 10-person household.
Age 18
b. ~1922
Female
Daughter
Born: Virginia
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Prince-George'S-County, Maryland |
| Surname | Kuhn |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Hyattsville |
| Additional Details | |
| Occupation | New Worker |
| Hours Worked | 95 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Occupation | New Worker |
| Township / Ward | Hyattsville |
| Est. Birth Year | ~1922 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| William Kuhn | Son | — | 2 | ~1938 |
| Dorothy Kuhn | Daughter | — | 11 | ~1929 |
| Charles Kuhn | Son | — | 4 | ~1936 |
| Esther Kuhn | Spouse | — | 42 | ~1898 |
| Charlotte Kuhn | Daughter | — | 14 | ~1926 |
| Henry Kuhn | Son | — | 16 | ~1924 |
| Henry Kuhn | Head | — | 44 | ~1896 |
| Jackson Kuhn | Son | — | 20 | ~1920 |
| Mary Kuhn | Daughter | — | 18 | ~1922 |
| Betty Kuhn | Daughter | — | 10 | ~1930 |
Census Appearances
1930
Prince George, …
Daughter, age 8
Prince George, Maryland · implied b. ~1922 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kuhn |
| Given Name | Mary M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Can Read/Write | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
Prince-George'S-County, Maryland
Daughter, age 18
Prince-George'S-County, Maryland · implied b. ~1922 — 10 household members
| Surname | Kuhn |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Hyattsville |
| Occupation | New Worker |
| Hours Worked | 95 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
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 18 · b. ~1922 · Maryland
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Sibling
William Kuhn
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Kuhn
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Kuhn
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Kuhn
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jackson Kuhn
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charlotte Kuhn
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Kuhn
Sibling · 1940 · age 10
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 — Prince-George'S-County, Maryland
Open full size
1940 US Federal Census — Prince-George'S-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01557-00488)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Julia Weyforth | 19 | Daughter | — | D.C. |
| 2 | Laidlaw Swank | 31 | Son-in-law | — | Pennsylvania |
| 3 | Edward J. Stargel | 33 | Head | Bookkeeper | D.C. |
| 4 | Ruth Stargel | 32 | Wife | — | Alabama |
| 5 | Dona Joe Stargel | 5 | Daughter | — | D.C. |
| 6 | Joseph P. Vespermann | 25 | Head | Supervisor | Maryland |
| 7 | Mary C. Vespermann | 50 | Mother | — | Maryland |
| 8 | William Vespermann | 24 | Brother | Baker | Maryland |
| 9 | Paul A. Vespermann | 17 | Brother | — | Maryland |
| 10 | Martin Leader | 16 | Adopted Son | — | Maryland |
| 11 | Mary Balduino | 19 | Boarder | Waitress | Maryland |
| 12 | George L. Weidemann | 33 | Head | Salesman | Germany |
| 13 | Nellie Weidemann | 28 | Wife | — | New York |
| 14 | Michael A. Bleary | 58 | Head | Route Agent | D.C. |
| 15 | Amy S. Bleary | 57 | Wife | — | Jamaica |
| 16 | Richard H. Bleary | 21 | Son | Manager | Maryland |
| 17 | Catherine E. Bleary | 20 | Daughter | Secretary | Maryland |
| 18 | Paul J. Jr. Dant | 26 | Son-in-law | Lithographer | D.C. |
| 19 | Dorothy Dant | 24 | Daughter | Proof Reader | Maryland |
| 20 | Irene Gray | 54 | Head | — | D.C. |
| 21 | Marion Gray | 33 | Daughter | — | D.C. |
| 22 | Carl Gray | 25 | Son-in-law | Cab Dispatcher | Virginia |
| 23 | Ethel Barr | 21 | Daughter | Stenographer | Maryland |
| 24 | Irene Barr | 2 | Daughter | — | D.C. |
| 25 | Ernest Mitchell | 59 | Head | — | Virginia |
| 26 | Mary S. Mitchell | 58 | Wife | — | Virginia |
| 27 | Lincoln Mitchell | 43 | Son | Electrician | Virginia |
| 28 | Henry Kuhn | 44 | Head | Carpenter | Virginia |
| 29 | Esther Kuhn | 42 | Wife | — | Virginia |
| 30 | Jackson Kuhn | 20 | Son | Sales Clerk | Virginia |
| 31 | Mary Kuhn THIS PERSON | 18 | Daughter | New Worker | Virginia |
| 32 | Henry Kuhn | 16 | Son | — | Virginia |
| 33 | Charlotte Kuhn | 14 | Daughter | — | Maryland |
| 34 | Dorothy Kuhn | 11 | Daughter | — | Maryland |
| 35 | Betty Kuhn | 10 | Daughter | — | Maryland |
| 36 | Charles Kuhn | 4 | Son | — | Maryland |
| 37 | William Kuhn | 2 | Son | — | Maryland |
| 38 | William J. Hunter | 60 | Head | Contractor | Ohio |
| 39 | Effie M. Hunter | 57 | Wife | — | Ohio |
| 40 | Elizabeth Harrison | 32 | Housekeeper | Housekeeper | Mississippi |
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)