JH
John Hansen — 1940 US Census Record
Model Tree available1940 United States Federal Census · Frederick-County, Maryland
Our Model Tree links this John Hansen across the 1920, 1930 and 1940 US Censuses in Frederick-County, Maryland (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Frederick-County, Maryland |
| Surname | Hansen |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Frederick City |
| 1935 Residence (County) | Frederick |
| Additional Details | |
| Hours Worked | 6 |
| Income (1939) | 0 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Frederick City |
| Est. Birth Year | ~1909 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Hansen | Head | — | 58 | ~1882 |
| John Hansen | Son | — | 31 | ~1909 |
| Allie Hansen | Spouse | — | 54 | ~1886 |
Census Appearances
Son, age 11
Frederick, Maryland · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hanson |
| Given Name | John A. Jr. |
| Relationship to Head | Son |
| Sex | M |
| 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
Frederick, Maryland
Son, age 21
Frederick, Maryland · implied b. ~1909 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hansen |
| Given Name | John H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Teacher |
| Industry | High School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Frederick-County, Maryland
Son, age 31
Frederick-County, Maryland · implied b. ~1909 — 3 household members
| Surname | Hansen |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Frederick City |
| 1935 Residence (County) | Frederick |
| Hours Worked | 6 |
| Income (1939) | 0 |
| Highest Grade | C 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 John Hansen across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Hansen (~0.92 confidence) and father John Hanson (~0.92 confidence) and mother Allie Hansen (~0.92 confidence) and mother Ellie Hanson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Hansen
b. ~1883
Source father
● Household
· direct · ~0.92
Father
John Hanson
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Allie Hansen
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Ellie Hanson
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Hansen
Son · 1940 · age 31 · b. ~1909 · Maryland
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Frederick-County, Maryland
Open full size
1940 US Federal Census — Frederick-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01548-00148)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clay Speers | 34 | Head | Foreman | Maryland |
| 2 | Anna D Speers | 31 | Wife | — | Maryland |
| 3 | La Mar Speers | 9 | Son | — | Maryland |
| 4 | Thelma Speers | 4 | Daughter | — | Maryland |
| 5 | Richard Perkins | 40 | Head | Manager | Alabama |
| 6 | Kathryn Perkins | 38 | Wife | — | Virginia |
| 7 | Ruby Traylor | 28 | Cousin | — | Alabama |
| 8 | Erna Stevens | 31 | Lodger | Seamstress | Pennsylvania |
| 9 | Lowell Stevens | 8 | Lodger | — | Maryland |
| 10 | Albert Culler | 50 | Head | Service Man | Maryland |
| 11 | Katherine Culler | 49 | Wife | — | Maryland |
| 12 | Helen Culler | 21 | Daughter | — | Maryland |
| 13 | Ruth Waybright | 27 | Lodger | Nurse | Pennsylvania |
| 14 | Clara Falk | 67 | Head | — | Maryland |
| 15 | John M Moore | 52 | Head | Conductor | Maryland |
| 16 | Eva H Moore | 51 | Wife | — | Maryland |
| 17 | John A. Hansen | 58 | Head | Foreman | Maryland |
| 18 | Allie Hansen | 54 | Wife | — | Maryland |
| 19 | John Jr. Hansen THIS PERSON | 31 | Son | — | Maryland |
| 20 | Daniel Brunner | 62 | Head | Janitor | Maryland |
| 21 | Mamie E. Brunner | 35 | Wife | — | Maryland |
| 22 | Margaret Morgan | 32 | Daughter | Dining Room | Maryland |
| 23 | Gene Brandenburg | 16 | Lodger | Dining Room | Maryland |
| 24 | William Stollier | 39 | Head | Crane Man | Maryland |
| 25 | Ruth Stollier | 40 | Daughter | Office Work | Maryland |
| 26 | Frances Stollier | 17 | Daughter | — | Maryland |
| 27 | Faye Stollier | 16 | Daughter | — | Maryland |
| 28 | Alfred Stollier | 15 | Son | — | Maryland |
| 29 | William Stollier | 13 | Son | — | Maryland |
| 30 | Walter Stollier | 11 | Son | — | Maryland |
| 31 | Ealnor Stollier | 9 | Daughter | — | Maryland |
| 32 | Thomas F. Fleming | 31 | Head | Barber | Washington |
| 33 | Lillian Fleming | 30 | Wife | Telephone Operator | Maryland |
| 34 | Frederick R Fleming | 5 | Son | — | Maryland |
| 35 | Donald L. Fleming | 5 | Son | — | Maryland |
| 36 | Alberta Fleming | 57 | Mother | — | Maryland |
| 37 | Bernard Gilbert | 41 | Head | Production Manager | Maryland |
| 38 | Mary Gilbert | 37 | Wife | — | Maryland |
| 39 | Bernard Jr. Gilbert | 16 | Son | — | Maryland |
| 40 | Leonard Ramsburg | 21 | Head | Truck Driver | Maryland |
Related Census Records
Pedigree Summary
John
Gen 1 · 4 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)