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William Henderson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this William Henderson across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents Thomas & Monroe — first a head (b.~1912), then head of a 4-person household.
Age 28
b. ~1912
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Henderson |
| Given Name | William J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore |
| Additional Details | |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | G 8 |
| 1935 Residence | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1912 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Ruth Henderson | Daughter | — | ~1940 | |
| William Henderson | Head | — | 28 | ~1912 |
| William Henderson | Son | — | 2 | ~1938 |
| Florence Henderson | Spouse | — | 21 | ~1919 |
Census Appearances
1920
Baltimore, Maryland
Son, age 8
Baltimore, Maryland · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Henderson |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 18
Baltimore, Maryland · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Henderson |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Head, age 28
Baltimore-City-County, Maryland · implied b. ~1912 — 4 household members
| Surname | Henderson |
| Given Name | William J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | G 8 |
| 1935 Residence | Maryland |
| 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 Henderson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Henderson (~0.92 confidence) and father Monroe Henderson (~0.92 confidence) and mother Margaret Henderson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Henderson
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Monroe Henderson
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Margaret Henderson
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Henderson
Head · 1940 · age 28 · b. ~1912 · 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 — 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-t0627-01511-00151)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Julia Staylor | 11 | Daughter | — | Maryland |
| 2 | Eileen Staylor | 10 | Daughter | — | Maryland |
| 3 | Walter S. Schultz | 58 | Head | — | Maryland |
| 4 | Louisa Schultz | 56 | Wife | — | Maryland |
| 5 | Hannah Chase | 79 | Mother | — | Maryland |
| 6 | Louisa Schultz | 18 | Son | — | Maryland |
| 7 | Charles Meyers | 32 | Head | New Worker | Maryland |
| 8 | Edith M. Meyers | 30 | Wife | Supervisor | Maryland |
| 9 | Bertha A. Herzog | 66 | Mother-in-law | Clerk | Maryland |
| 10 | Andrew De Martin | 29 | Head | — | Maryland |
| 11 | Ida De Martin | 25 | Wife | Stevedore | Maryland |
| 12 | Audrey De Martin | 5 | Daughter | — | Maryland |
| 13 | John P. Borowicz | 26 | Head | — | Maryland |
| 14 | Anna Borowicz | 25 | Wife | Longshoreman | Maryland |
| 15 | Ruth A. Barnes | 52 | Head | Inspector | Florida |
| 16 | George A. Barnes | 20 | Son | — | Maryland |
| 17 | Harry V. Barnes | 16 | Son | Laborer | Maryland |
| 18 | Carole A. Barnes | 14 | Daughter | Clerk | Maryland |
| 19 | William J. Henderson THIS PERSON | 28 | Head | — | Maryland |
| 20 | Florence M. Henderson | 21 | Wife | Maint. Man | Maryland |
| 21 | William J. Henderson | 2 | Son | — | Maryland |
| 22 | Ruth M. Henderson | 0 | Daughter | — | Maryland |
| 23 | John R. Bechtold | 56 | Head | — | Maryland |
| 24 | Ida L. Bechtold | 50 | Wife | Carpenter | Maryland |
| 25 | Irene Bechtold | 14 | Daughter | — | Maryland |
| 26 | Tillie Tracey | 39 | Head | — | Pennsylvania |
| 27 | Rita Tracey | 17 | Daughter | Waitress | Maryland |
| 28 | William Winiarski | 37 | Head | — | Maryland |
| 29 | Stella Winiarski | 31 | Wife | Mechanic | Maryland |
| 30 | William Winiarski | 10 | Son | — | Maryland |
| 31 | Daniel Winiarski | 7 | Son | — | Maryland |
| 32 | Charles Winiarski | 5 | Son | — | Maryland |
| 33 | Michael Winiarski | 34 | Brother | — | Missouri |
| 34 | Rudolf Prieber | 66 | Head | Laborer | Germany |
| 35 | Mary T. Prieber | 63 | Wife | — | Germany |
| 36 | Martin P. Beere | 30 | Head | Machine Operator | Maryland |
| 37 | Catherine Beere | 24 | Wife | Laborer | Maryland |
| 38 | Michael P. Beere | 2 | Son | — | Maryland |
| 39 | Joseph Rice | 26 | Son | Laborer | Maryland |
| 40 | Charles Mundroff | 52 | Head | Crane Operator | Pennsylvania |
Related Census Records
Pedigree Summary
William
Gen 1 · 3 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)