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William Hahn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Anne-Arundel-County, Maryland
Our Model Tree links this William Hahn across the 1930 and 1940 US Censuses in Anne-Arundel-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 7-person household.
Age 14
b. ~1926
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Anne-Arundel-County, Maryland |
| Surname | Hahn |
| Given Name | William J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Elec Dist 3 |
| 1935 Residence (County) | Anne Arundel |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Elec Dist 3 |
| Est. Birth Year | ~1926 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| William Hahn | Son | — | 14 | ~1926 |
| Gertrude Hahn | Daughter | — | 21 | ~1919 |
| Frances Hahn | Spouse | — | 48 | ~1892 |
| Peter Hahn | Son | — | 7 | ~1933 |
| Frances Hahn | Daughter | — | 20 | ~1920 |
| Edward Hahn | Head | — | 49 | ~1891 |
| Edward Hahn | Son | — | 18 | ~1922 |
Census Appearances
Son, age 4
Anne Arundel, Maryland · implied b. ~1926 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hanna |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Anne-Arundel-County, Maryland
Son, age 14
Anne-Arundel-County, Maryland · implied b. ~1926 — 7 household members
| Surname | Hahn |
| Given Name | William J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Elec Dist 3 |
| 1935 Residence (County) | Anne Arundel |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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 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 14 · b. ~1926 · Maryland
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Sibling
Frances Hahn
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Hahn
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Hahn
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Peter Hahn
Sibling · 1940 · age 7
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 — Anne-Arundel-County, Maryland
Open full size
1940 US Federal Census — Anne-Arundel-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01501-00546)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Morris Braun | 26 | Head | — | Maryland |
| 42 | Leola Braun | 21 | Wife | — | Maryland |
| 43 | Harvey Klickman | 40 | Head | Carpenter | Maryland |
| 44 | Leona Klickman | 40 | Wife | Clerk | Maryland |
| 45 | Violet E. Klickman | 12 | Daughter | — | Maryland |
| 46 | Della M. Klickman | 7 | Daughter | — | Maryland |
| 47 | Harvey A. Klickman | 2 | Son | — | Maryland |
| 48 | William E. Breneman | 19 | Step son | Carpenter | Maryland |
| 49 | Joseph C. Lange | 46 | Head | Maintenance | Maryland |
| 50 | Lillian Lange | 45 | Wife | — | Maryland |
| 51 | John Smith | 48 | Head | Machinist | Lithuania |
| 52 | Gene Smith | 46 | Wife | — | Poland |
| 53 | Dorothy Smith | 17 | Daughter | — | Maryland |
| 54 | Michael Crowley | 43 | Head | Laborer | Maryland |
| 55 | Rachael R. Crowley | 36 | Wife | Laborer | Maryland |
| 56 | Crowley | 15 | Son | — | Maryland |
| 57 | Walter L. Powder | 38 | Head | Painter | Maryland |
| 58 | Verna A. Powder | 33 | Wife | — | New York |
| 59 | Richard Powder | 15 | Son | — | New York |
| 60 | Walter R. Powder | 9 | Son | — | Maryland |
| 61 | William D. Powder | 7 | Son | — | Maryland |
| 62 | John W. Cain | 63 | Head | Prop. | New York |
| 63 | William H. Higgins | 29 | Head | Truck Driver | New York |
| 64 | Margaret Higgins | 23 | Wife | — | Maryland |
| 65 | Helen E. Higgins | 7 | Daughter | — | Maryland |
| 66 | Evelyn A. Higgins | 3 | Daughter | — | Maryland |
| 67 | Wayne A. Higgins | 2 | Son | — | Maryland |
| 68 | Edward E. Hahn | 49 | Head | Grader Operator | Maryland |
| 69 | Frances V. Hahn | 48 | Wife | — | Maryland |
| 70 | Gertrude M. Hahn | 21 | Daughter | Housework | Maryland |
| 71 | Frances V. Hahn | 20 | Daughter | — | Maryland |
| 72 | Edward E. Hahn | 18 | Son | Farm Hand | Maryland |
| 73 | William J. Hahn THIS PERSON | 14 | Son | — | Maryland |
| 74 | Peter Hahn | 7 | Son | — | Maryland |
| 75 | Peter Hahn | 78 | Head | Retired | Maryland |
| 76 | Mary Hahn | 73 | Wife | — | Germany |
| 77 | John W. Hahn | 36 | Son | Farm | Maryland |
| 78 | Beulah C. Hahn | 35 | Daughter | — | Maryland |
| 79 | John W. Jr. Hahn | 9 | Grandson | — | Maryland |
| 80 | Clarence K. Hahn | 7 | Grandson | — | 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)