HJ
Harold Jackson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Berks-County, Pennsylvania
Our Model Tree links this Harold Jackson across the 1920, 1930 and 1940 US Censuses in Berks-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents William & William — first a son (b.~1919), then head of a 9-person household.
Age 21
b. ~1919
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Berks-County, Pennsylvania |
| Surname | Jackson |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Reading |
| 1935 Residence (County) | Berks |
| Additional Details | |
| Occupation | Bell Hop |
| Industry | Hotel |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 760 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Bell Hop |
| Township / Ward | Reading |
| Est. Birth Year | ~1919 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Floyd Jackson | Son | — | 20 | ~1920 |
| Laura Donnalley | Daughter | — | 28 | ~1912 |
| Russell Jackson | Son | — | 27 | ~1913 |
| Mary Jackson | Daughter | — | 24 | ~1916 |
| Harold Jackson | Son | — | 21 | ~1919 |
| Richard Jackson | Son | — | 15 | ~1925 |
| William Jackson | Head | — | 67 | ~1873 |
| Ellen Jackson | Spouse | — | 53 | ~1887 |
| Charles Donnalley | Other | — | 34 | ~1906 |
Census Appearances
1920
Berks, Pennsylvania
Son, age 1
Berks, Pennsylvania · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Harold J. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Berks, Pennsylvania
Son, age 11
Berks, Pennsylvania · implied b. ~1919 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Harold L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Berks-County, Pennsylvania
Son, age 21
Berks-County, Pennsylvania · implied b. ~1919 — 9 household members
| Surname | Jackson |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Reading |
| 1935 Residence (County) | Berks |
| Occupation | Bell Hop |
| Industry | Hotel |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 760 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Harold Jackson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Jackson (~0.92 confidence) and father William Jackson (~0.92 confidence) and father William Jackson (~0.92 confidence) and mother Ella Jackson (~0.92 confidence) and mother Ellen Jackson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Jackson
b. ~1873
Source father
● Household
· direct · ~0.92
Father
William Jackson
b. ~1873
Source father
● Household
· direct · ~0.92
Father
William Jackson
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Ella Jackson
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Ellen Jackson
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Jackson
Son · 1940 · age 21 · b. ~1919 · Pennsylvania
★ You are viewing this record
Sibling
Laura Donnalley
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Jackson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Russell Jackson
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Floyd Jackson
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Jackson
Sibling · 1940 · age 24
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 — Berks-County, Pennsylvania
Open full size
1940 US Federal Census — Berks-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03681-00061)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elizabeth E Harper | 76 | Sister | — | Pennsylvania |
| 2 | Anna A Harper | 69 | Sister | — | Pennsylvania |
| 3 | Eric Lundberg | 75 | Head | — | Sweden |
| 4 | Beulah O Lundberg | 62 | Wife | — | Pennsylvania |
| 5 | John P Winkler | 31 | Head | Draftsman | Pennsylvania |
| 6 | Margaret Winkler | 30 | Wife | Stitcher Trainer | Pennsylvania |
| 7 | Samuel Sondheim | 61 | Head | Salesman | Pennsylvania |
| 8 | Dora Sondheim | 59 | Wife | — | Pennsylvania |
| 9 | Beatrice Sondheim | 28 | Daughter | Social Aid Worker | Pennsylvania |
| 10 | Frank Ruffner | 50 | Head | Conductor | Pennsylvania |
| 11 | Eva Ruffner | 48 | Wife | — | Pennsylvania |
| 12 | Olivia Ruffner | 29 | Daughter | Investigator | Pennsylvania |
| 13 | Elizabeth Moyer | 76 | Mother-in-law | — | Pennsylvania |
| 14 | Bernard Kubacki | 50 | Head | Cupola Tender | Poland |
| 15 | Lena Kubacki | 50 | Wife | — | Poland |
| 16 | Bertha Kubacki | 25 | Daughter | Graduate Nurse | Pennsylvania |
| 17 | Adele Kubacki | 22 | Daughter | Saleslady | Pennsylvania |
| 18 | William Jackson | 67 | Head | — | Pennsylvania |
| 19 | Ellen Jackson | 53 | Wife | — | Pennsylvania |
| 20 | Russell Jackson | 27 | Son | Salesman | Pennsylvania |
| 21 | Mary Jackson | 24 | Daughter | Candy Packer | Pennsylvania |
| 22 | Harold Jackson THIS PERSON | 21 | Son | Bell Hop | Pennsylvania |
| 23 | Floyd Jackson | 20 | Son | Office Clerk | Pennsylvania |
| 24 | Richard Jackson | 15 | Son | — | Pennsylvania |
| 25 | Charles F Donnalley | 34 | Son-in-law | Hod Carrier | Pennsylvania |
| 26 | Laura Donnalley | 28 | Daughter | — | Pennsylvania |
| 27 | James Eady | 78 | Head | — | Pennsylvania |
| 28 | June Weaver | 58 | Housekeeper | Housekeeper | Pennsylvania |
| 29 | Marietta Roland | 78 | Head | — | Pennsylvania |
| 30 | Elsie M Roland | 54 | Daughter | Secretary | Pennsylvania |
| 31 | Elizabeth Siegel | 68 | Housekeeper | Housekeeper | Pennsylvania |
| 32 | Isadore Sondheim | 65 | Head | Insurance Salesman | Pennsylvania |
| 33 | Edith Sondheim | 60 | Wife | — | Pennsylvania |
| 34 | Joseph R Bloom | 53 | Head | Salesman | Russia |
| 35 | Dora Bloom | 56 | Wife | — | Russia |
| 36 | Mary Bloom | 29 | Daughter | Saleslady | Pennsylvania |
| 37 | Elizabeth Bloom | 26 | Daughter | Substitute Teacher | Pennsylvania |
| 38 | Jean Bloom | 24 | Daughter | Saleslady | Pennsylvania |
| 39 | Hannah Bloom | 23 | Daughter | Insurance Solicitor | Pennsylvania |
| 40 | Mollie Bloom | 21 | Daughter | Stenographer | Pennsylvania |
Related Census Records
Pedigree Summary
Harold + 5 siblings
Gen 1 · 5 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)