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William Hahn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this William Hahn across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 10-person household.
Age 13
b. ~1927
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Hahn |
| Given Name | William L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1927 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Rita Lubing | Daughter | — | 12 | ~1928 |
| Anna Lubing | Spouse | — | 43 | ~1897 |
| William Hahn | Son | — | 13 | ~1927 |
| Emma Hahn | Daughter | — | 28 | ~1912 |
| Wasily Pribosky | Other | — | 44 | ~1896 |
| Bridget Hahn | Spouse | — | 49 | ~1891 |
| Constantine Lubing | Son | — | 21 | ~1919 |
| George Lubing | Son | — | 14 | ~1926 |
| Margaret Hahn | Daughter | — | 16 | ~1924 |
| James Hahn | Son | — | 24 | ~1916 |
Census Appearances
1930
Baltimore, Maryland
Son, age 3
Baltimore, Maryland · implied b. ~1927 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ham |
| Given Name | William H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 13
Baltimore-City-County, Maryland · implied b. ~1927 — 10 household members
| Surname | Hahn |
| Given Name | William L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Income (1939) | 0 |
| Highest Grade | No 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 William Hahn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Hahn
Son · 1940 · age 13 · b. ~1927 · Maryland
★ You are viewing this record
Sibling
Rita Lubing
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Hahn
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Lubing
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emma Hahn
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Constantine Lubing
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Hahn
Sibling · 1940 · age 16
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-t0627-01534-00334)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Bridget Hahn | 49 | Wife | — | Maryland |
| 42 | Emma Hahn | 28 | Daughter | Rubber Heel | Maryland |
| 43 | James E Hahn | 24 | Son | Helper | Maryland |
| 44 | Margaret R Hahn | 16 | Daughter | — | Maryland |
| 45 | William L Hahn THIS PERSON | 13 | Son | — | Maryland |
| 46 | Anna Lubing | 43 | Wife | Sewing | Russia |
| 47 | Constantine Lubing | 21 | Son | Apprentice | Russia |
| 48 | George Lubing | 14 | Son | — | Maryland |
| 49 | Rita Lubing | 12 | Daughter | — | Maryland |
| 50 | Wasily Pribosky | 44 | Lodger | Stevedore | Russia |
| 51 | Dorothy R Tate | 21 | Head | Laundry | Maryland |
| 52 | Thomas Tate | 19 | Brother | Helper On Truck | Maryland |
| 53 | Hazel E Tate | 18 | Sister | — | Maryland |
| 54 | Arthur Tate | 17 | Brother | Stock-Boy | Maryland |
| 55 | Robert Tate | 14 | Brother | — | Maryland |
| 56 | Albert E Hoffman | 33 | Head | Pipefitter | Maryland |
| 57 | Marie G Hoffman | 34 | Wife | — | Maryland |
| 58 | Franke Edna M Hoffman | 36 | Sister-in-law | Examiner | Maryland |
| 59 | James M Dolan | 50 | Head | Tapper | Maryland |
| 60 | Mary A Dolan | 49 | Wife | — | New York |
| 61 | James J Dolan | 26 | Son | Inspector | Maryland |
| 62 | Mary A Dolan | 21 | Daughter | Saleswoman | Maryland |
| 63 | Peter A Dolan | 19 | Son | Operator | Maryland |
| 64 | Theresa S Dolan | 17 | Daughter | Stengirl | Maryland |
| 65 | Rita C Dolan | 16 | Daughter | — | Maryland |
| 66 | Harry E Schafer | 27 | Head | Huckster | Maryland |
| 67 | Ruth E Schafer | 26 | Wife | — | Maryland |
| 68 | Melvin A Schafer | 5 | Son | — | Maryland |
| 69 | Helen A Schafer | 4 | Daughter | — | Maryland |
| 70 | Ruth E Schafer | 2 | Daughter | — | Maryland |
| 71 | William T Schmidt | 56 | Father-in-law | Shipping Clerk | Maryland |
| 72 | Andrew L Schmidt | 22 | Brother-in-law | Silver Helper | Maryland |
| 73 | George E Schmidt | 16 | Brother-in-law | Helper | Maryland |
| 74 | Rena E Schmidt | 9 | Sister-in-law | — | Maryland |
| 75 | Paul Huck | 45 | Head | Machinist | Russia |
| 76 | Stephanie Huck | 43 | Wife | Operator | Poland |
| 77 | John Szyszka | 24 | Step-son | Laborer | Michigan |
| 78 | Marianne Szyszka | 22 | Step-daughter | Bookkeeping | Maryland |
| 79 | Frank Hofak | 54 | Head | Laborer | Poland |
| 80 | Vera Hofak | 51 | Wife | — | Russia |
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)