HJ
Herbert Jackson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-County, Maryland
Our Model Tree links this Herbert Jackson across the 1930 and 1940 US Censuses in Baltimore-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 7-person household.
Age 13
b. ~1927
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-County, Maryland |
| Surname | Jackson |
| Given Name | Herbert R. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Unincorporated place (Garrison-Dundalk-St Helena) |
| 1935 Residence (County) | Baltimore |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Unincorporated Place Garrisondundalkst Helena |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Herbert | Age | Birth yr |
|---|---|---|---|---|
| Edward Jackson | Son | — | 16 | ~1924 |
| Harrison Jackson | Head | — | 51 | ~1889 |
| Mattie Jackson | Spouse | — | 40 | ~1900 |
| Dorothy Jackson | Daughter | — | 11 | ~1929 |
| Nelson Jackson | Son | — | 19 | ~1921 |
| Herbert Jackson | Son | — | 13 | ~1927 |
| Margaret Jackson | Daughter | — | 5 | ~1935 |
Census Appearances
1930
Baltimore, Maryland
Son, age 3
Baltimore, Maryland · implied b. ~1927 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Herbert R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | none |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-County, Maryland
Son, age 13
Baltimore-County, Maryland · implied b. ~1927 — 7 household members
| Surname | Jackson |
| Given Name | Herbert R. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Unincorporated place (Garrison-Dundalk-St Helena) |
| 1935 Residence (County) | Baltimore |
| Highest Grade | No 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 Herbert Jackson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Herbert Jackson
Son · 1940 · age 13 · b. ~1927 · Maryland
★ You are viewing this record
Sibling
Edward Jackson
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nelson Jackson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Jackson
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Jackson
Sibling · 1940 · age 11
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-County, Maryland
Open full size
1940 US Federal Census — Baltimore-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01506-00059)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William S. Knott | 22 | stepson | Ship Yard | Maryland |
| 2 | John S. Knott | 20 | stepson | Truck Driver | Maryland |
| 3 | Frank B. Knott | 17 | stepson | Roofer | Maryland |
| 4 | Ada T. Cook | 21 | niece | — | Maryland |
| 5 | Raymond C. Cook | 4 | nephew | — | Maryland |
| 6 | Edward C. Fate | 19 | nephew | Truck Driver | Maryland |
| 7 | Antonio Flantini | 45 | Head | Stone | Italy |
| 8 | Johanna Flantini | 31 | wife | — | Italy |
| 9 | Pierina Flantini | 11 | daughter | — | D. C. |
| 10 | Louis Flantini | 8 | son | — | Maryland |
| 11 | Ellen Flantini | 7 | daughter | — | Maryland |
| 12 | George Romano | 46 | boarder | Bricklayer | Italy |
| 13 | John Carl | 38 | Head | Loader | Maryland |
| 14 | Anna M. Carl | 33 | wife | — | Maryland |
| 15 | Marie A. Carl | 15 | daughter | — | Maryland |
| 16 | John Carl | 13 | son | — | Maryland |
| 17 | George V. Carl | 11 | son | — | Maryland |
| 18 | Leslie L. Martin | 26 | Head | Truck Operator | South Carolina |
| 19 | Francis S. Martin | 23 | wife | — | Pennsylvania |
| 20 | Leslie L. Jr. Martin | 3 | son | — | D. C. |
| 21 | Leroy R. Martin | 2 | son | — | Maryland |
| 22 | Larry A. Martin | 1 | son | — | Maryland |
| 23 | Robert Martin | 29 | brother | Washing Feeder | Tennessee |
| 24 | Harrison M. Jackson | 51 | Head | Carpenter | Virginia |
| 25 | Mattie L. Jackson | 40 | wife | — | Virginia |
| 26 | Nelson R. Jackson | 19 | son | Truck Driver | Virginia |
| 27 | Edward C. Ab. Jackson | 16 | son | Caretaker Stable | Virginia |
| 28 | Herbert R. Jackson THIS PERSON | 13 | son | — | Maryland |
| 29 | Dorothy M. Jackson | 11 | daughter | — | Maryland |
| 30 | Margaret G. Jackson | 5 | daughter | — | Maryland |
| 31 | Julian Pierzchalski | 51 | Head | Heater | Poland |
| 32 | Kazimiera Pierzchalski | 49 | wife | — | Poland |
| 33 | Anthony Pierzchalski | 27 | son | Bartender | Pennsylvania |
| 34 | Stephen Pierzchalski | 25 | son | Loader | Pennsylvania |
| 35 | Walter S. Pierzchalski | 18 | son | Wiper | Maryland |
| 36 | John Pierzchalski | 16 | son | — | Maryland |
| 37 | Francis Sillvester | 55 | sister | Laborer | Poland |
| 38 | Joseph J. Torre | 52 | Head | Stone Mason | Italy |
| 39 | Angelina Torre | 43 | wife | Finisher | Italy |
| 40 | Charles G. Torre | 20 | son | Chemist | Maryland |
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)