HJ
Harry Jackson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Harry Jackson across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 4-person household.
Age 51
b. ~1889
Male
Head
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Jackson |
| Given Name | Harry A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | Salesman |
| Industry | Building Material |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Salesman |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1889 |
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 Harry | Age | Birth yr |
|---|---|---|---|---|
| Audrey Jackson | Daughter | — | 15 | ~1925 |
| Harry Jackson | Head | — | 51 | ~1889 |
| Donald Jackson | Son | — | 22 | ~1918 |
| Rose Jackson | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Xx, Maryland
Head, age 31
Xx, Maryland · implied b. ~1889 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Harry S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | California |
| Father's Birthplace | England |
| Mother's Birthplace | California |
| Occupation | Salesman |
| Industry | Furniture |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Baltimore, Maryland
Head, age 41
Baltimore, Maryland · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Harry G |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 27 |
| Father's Birthplace | England |
| Mother's Birthplace | California |
| Occupation | Sales Mag. |
| Industry | Iron Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 50 |
| Radio Set | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Baltimore-City-County, Maryland
Head, age 51
Baltimore-City-County, Maryland · implied b. ~1889 — 4 household members
| Surname | Jackson |
| Given Name | Harry A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Salesman |
| Industry | Building Material |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Jackson across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Harry Jackson
Head · 1940 · age 51 · b. ~1889 · 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-t0627-01540-00936)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harry A. Jackson THIS PERSON | 51 | Head | Salesman | California |
| 2 | Rose R. Jackson | 48 | Wife | Clerk | New York |
| 3 | Donald R. Jackson | 22 | Son | Clerk | Kentucky |
| 4 | Audrey C. Jackson | 15 | Daughter | — | Maryland |
| 5 | Herman L. Allers | 54 | Head | Locomotive Engineer | Maryland |
| 6 | Matilda Allers | 45 | Wife | — | Maryland |
| 7 | Arthur R. Allers | 24 | Son | — | Maryland |
| 8 | Norman C. Allers | 22 | Son | Book-Keeper | Maryland |
| 9 | Herman L. Jr. Allers | 20 | Son | Salesman | Maryland |
| 10 | Hilda M. Allers | 14 | Daughter | — | Maryland |
| 11 | Eleanor Allers | 11 | Daughter | — | Maryland |
| 12 | Cyril H. Hebrank | 48 | Head | Architect | Maryland |
| 13 | Adelaide R. Hebrank | 48 | Wife | — | Maryland |
| 14 | Cyril H. Jr. Hebrank | 20 | Son | — | Maryland |
| 15 | William H. Hebrank | 17 | Son | — | Maryland |
| 16 | John H. Hebrank | 16 | Son | — | Maryland |
| 17 | Dwight C. Rowell | 50 | Head | Salesman | Maryland |
| 18 | Margaret D. Rowell | 39 | Wife | — | Pennsylvania |
| 19 | Dwight C. Jr. Rowell | 20 | Son | — | New Jersey |
| 20 | Kenneth T. Rowell | 16 | Son | — | New Jersey |
| 21 | Gordon T. Rowell | 8 | Son | — | Maryland |
| 22 | Annie L. Whitby | 81 | Mother | — | Maryland |
| 23 | Charles C. Hare | 54 | Head | Foreman | Delaware |
| 24 | Rena B. Hare | 64 | Wife | — | Maryland |
| 25 | Philip C. Hayward | 65 | Brother-in-law | Salesman | Maryland |
| 26 | Lola V. Hayward | 68 | Sister | — | Maryland |
| 27 | Alonzo T. Folger | 39 | Head | Manager | D.C. |
| 28 | Luella B. Folger | 37 | Wife | — | Illinois |
| 29 | Lucy J. Folger | 10 | Daughter | — | Illinois |
| 30 | Alonzo T. Jr. Folger | 9 | Son | — | Michigan |
| 31 | Carl B. Perry | 43 | Head | Salesman | South Carolina |
| 32 | Florence Perry | 43 | Wife | — | Pennsylvania |
| 33 | Robert D. Perry | 15 | Son | — | Maryland |
| 34 | Richard W. Perry | 5 | Son | — | Maryland |
| 35 | Samuel C. Witherspoon | 49 | Head | Research | Pennsylvania |
| 36 | Mary G. Witherspoon | 47 | Wife | — | Michigan |
| 37 | John E. Witherspoon | 14 | Son | — | Maryland |
| 38 | Dorothy Witherspoon | 12 | Daughter | — | Maryland |
| 39 | Mary B. Fox | 62 | Head | — | Maryland |
| 40 | Mildred L. Fox | 40 | Daughter | Bookkeeper | 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)