HL
Harry Long — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Harry Long across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents George & George — first a son (b.~1904), then head of a 3-person household.
Age 36
b. ~1904
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Long |
| Given Name | Harry G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1904 |
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 Harry | Age | Birth yr |
|---|---|---|---|---|
| George Long | Head | — | 64 | ~1876 |
| Sadie Long | Spouse | — | 60 | ~1880 |
| Harry Long | Son | — | 36 | ~1904 |
Census Appearances
1920
Baltimore, Maryland
Son, age 15
Baltimore, Maryland · implied b. ~1905 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| 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
Baltimore, Maryland
Son, age 25
Baltimore, Maryland · implied b. ~1905 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Harry H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Musician |
| Industry | Orchestra |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 36
Baltimore-City-County, Maryland · implied b. ~1904 — 3 household members
| Surname | Long |
| Given Name | Harry G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Highest Grade | Hs 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 Harry Long across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Long (~0.92 confidence) and father George Long (~0.92 confidence) and mother Sadie Long (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Long
b. ~1875
Source father
● Household
· direct · ~0.92
Father
George Long
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Sadie Long
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Long
Son · 1940 · age 36 · b. ~1904 · 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-t0627-01537-00593)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Sommers | 14 | Son | — | Maryland |
| 2 | George H. Long | 64 | Head | — | Maryland |
| 3 | Sadie L. Long | 60 | Wife | — | Maryland |
| 4 | Harry G. Long THIS PERSON | 36 | Son | — | Maryland |
| 5 | Rudolph Holtz | 44 | Head | Music Teacher | Germany |
| 6 | Anna Holtz | 50 | Wife | Groceress | Maryland |
| 7 | Richard Holtz | 21 | Son | — | Maryland |
| 8 | Anna Holtz | 18 | Daughter | Laborer | Maryland |
| 9 | Alverta Hofstetter | 30 | Daughter | Lithographer | Maryland |
| 10 | Charles Long | 45 | Head | Packer | Maryland |
| 11 | Louise M. Long | 38 | Daughter | Laborer | Maryland |
| 12 | Charles Jr. Long | 16 | Son | Printer | Maryland |
| 13 | Martin Long | 13 | Son | — | Maryland |
| 14 | Marie Long | 11 | Daughter | — | Maryland |
| 15 | Howard Long | 8 | Son | — | Maryland |
| 16 | Eleanor Long | 2 | Son | — | Maryland |
| 17 | Lillian Long | 4 | Daughter | — | Maryland |
| 18 | Mary Long | 1 | Daughter | — | Maryland |
| 19 | William Hvamman | 65 | Head | Laborer | Maryland |
| 20 | Rose Hvamman | 57 | Wife | — | Maryland |
| 21 | Bernard Henry | 57 | Head | Bartender | Maryland |
| 22 | Elizabeth Henry | 61 | Wife | — | Maryland |
| 23 | Joseph E. Shiba | 28 | Head | Running | Maryland |
| 24 | Anna Shiba | 28 | Wife | Operator | Maryland |
| 25 | Joseph E. Shiba | 6 | Son | — | Maryland |
| 26 | Howard Trumbach | 31 | Head | Layer Out | West Virginia |
| 27 | Ruth Trumbach | 21 | Wife | — | Maryland |
| 28 | Milton Carter | 29 | Head | Chauffeur | Maryland |
| 29 | Helen Carter | 26 | Wife | — | Maryland |
| 30 | Helen Stewart | 35 | Head | Waitress | Maryland |
| 31 | Kathryn Stewart | 20 | Daughter | — | Maryland |
| 32 | Mary Stewart | 18 | Daughter | — | Maryland |
| 33 | Edith Stewart | 16 | Daughter | — | Maryland |
| 34 | John W. Hazzell | 36 | Head | Laborer | Maryland |
| 35 | Evelyn Hazzell | 24 | Wife | Butcher | West Virginia |
| 36 | June Hazzell | 27 | Sister | — | Delaware |
| 37 | Margaret Hazzell | 6 | Daughter | — | Maryland |
| 38 | Rudolph Del Gallo | 52 | Head | Tailor | Italy |
| 39 | Rose Del Gallo | 50 | Wife | — | Italy |
| 40 | Lula Del Gallo | 20 | Daughter | Tailor | Italy |
Pedigree Summary
Harry
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)